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Trên diễn đàn có thể có rất nhiều bạn tham gia giải toán. Vậy câu trả lời nào là đúng và tin cậy được? Các bạn có thể nhận biết các câu trả lời đúng thông qua 6 cách sau đây:
1. Lời giải rõ ràng, hợp lý (vì nghĩ ra lời giải có thể khó nhưng rất dễ để nhận biết một lời giải có là hợp lý hay không. Chúng ta sẽ học được nhiều bài học từ các lời giải hay và hợp lý, kể cả các lời giải đó không đúng.)
2. Lời giải từ các giáo viên của Online Math có thể tin cậy được (chú ý: dấu hiệu để nhận biết Giáo viên của Online Math là các thành viên có gắn chứ "Quản lý" ở ngay sau tên thành viên.)
3. Lời giải có số bạn chọn "Đúng" càng nhiều thì càng tin cậy.
4. Người trả lời có điểm hỏi đáp càng cao thì độ tin cậy của lời giải sẽ càng cao.
5. Các bài có dòng chữ "Câu trả lời này đã được Online Math chọn" là các lời giải tin cậy được (vì đã được duyệt bởi các giáo viên của Online Math.)
6. Các lời giải do chính người đặt câu hỏi chọn cũng là các câu trả lời có thể tin cậy được.
chắc chắn mình sẽ cho nó 1 trận rồi chuuwir nó cho đã mồm
here :
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__d("Log",[],(function(a,b,c,d,e,f){"use strict";__p&&__p();a={DEBUG:3,INFO:2,WARNING:1,ERROR:0};b=function(a,b,c){for(var d=arguments.length,e=new Array(d>3?d-3:0),f=3;f<d;f++)e[f-3]=arguments[f];var h=0,i=c.replace(/%s/g,function(){return String(e[h++])}),j=window.console;j&&g.level>=b&&j[a in j?a:"log"](i)};var g={level:-1,Level:a,debug:b.bind(null,"debug",a.DEBUG),info:b.bind(null,"info",a.INFO),warn:b.bind(null,"warn",a.WARNING),error:b.bind(null,"error",a.ERROR),log:b};e.exports=g}),null);
__d("QueryString",[],(function(a,b,c,d,e,f){__p&&__p();function a(a){__p&&__p();var b=[];Object.keys(a).sort().forEach(function(c){var d=a[c];if(d===void 0)return;if(d===null){b.push(c);return}b.push(encodeURIComponent(c)+"="+encodeURIComponent(d))});return b.join("&")}function b(a,b){__p&&__p();b===void 0&&(b=!1);var c={};if(a==="")return c;a=a.split("&");for(var d=0;d<a.length;d++){var e=a[d].split("=",2),f=decodeURIComponent(e[0]);if(b&&Object.prototype.hasOwnProperty.call(c,f))throw new URIError("Duplicate key: "+f);c[f]=e.length===2?decodeURIComponent(e[1]):null}return c}function c(a,b){return a+(a.indexOf("?")!==-1?"&":"?")+(typeof b==="string"?b:g.encode(b))}var g={encode:a,decode:b,appendToUrl:c};e.exports=g}),null);
__d("sdk.FeatureFunctor",[],(function(a,b,c,d,e,f){__p&&__p();function g(a,b,c){if(a.features&&b in a.features){a=a.features[b];if(typeof a==="object"&&typeof a.rate==="number")if(a.rate&&Math.random()*100<=a.rate)return a.value||!0;else return a.value?null:!1;else return a}return c}function a(a){return function(){for(var b=arguments.length,c=new Array(b),d=0;d<b;d++)c[d]=arguments[d];if(c.length<2)throw new Error("Default value is required");var e=c[0],f=c[1];return g(a,e,f)}}e.exports={create:a}}),null);
__d("sdk.feature",["JSSDKConfig","sdk.FeatureFunctor"],(function(a,b,c,d,e,f){e.exports=b("sdk.FeatureFunctor").create(b("JSSDKConfig"))}),null);
__d("wrapFunction",[],(function(a,b,c,d,e,f){__p&&__p();var g={};a=function(a,b,c){return function(){var d=b in g?g[b](a,c):a;for(var e=arguments.length,f=new Array(e),h=0;h<e;h++)f[h]=arguments[h];return d.apply(this,f)}};a.setWrapper=function(a,b){g[b]=a};e.exports=a}),null);
__d("XDM",["Log","sdk.feature","wrapFunction"],(function(a,b,c,d,e,f){__p&&__p();var g={},h={transports:[]};function i(a){__p&&__p();var b={},c=a.length,d=h.transports;while(c--)b[a[c]]=1;c=d.length;while(c--){a=d[c];var e=g[a];if(!b[a]&&e.isAvailable())return a}return null}a={register:function(a,c){b("Log").debug("Registering %s as XDM provider",a),h.transports.push(a),g[a]=c},create:function(a){__p&&__p();if(!a.whenReady&&!a.onMessage){var c="An instance without whenReady or onMessage makes no sense";b("Log").error(c);throw new Error(c)}a.channel||(b("Log").warn("Missing channel name, selecting at random"),a.channel="f"+(Math.random()*(1<<30)).toString(16).replace(".",""));a.whenReady||(a.whenReady=function(){});a.onMessage||(a.onMessage=function(){});c=(c=a.transport)!=null?c:i(a.blacklist||[]);var d=c!=null?g[c]:null;if(d!=null&&d.isAvailable()){b("Log").debug("%s is available",c);d.init(a);return c}return null}};var j=/\.facebook\.com(\/|$)/;function k(a,b){var c=window.location.hostname.match(/\.(facebook\.sg|facebookcorewwwi\.onion)$/);c=c?c[1]:"facebook.com";new Image().src="https://www."+c+"/common/scribe_endpoint.php?c="+encodeURIComponent(a)+"&m="+encodeURIComponent(JSON.stringify(b))}a.register("postmessage",function(){__p&&__p();var a=!1;return{isAvailable:function(){return!!window.postMessage},init:function(c){__p&&__p();b("Log").debug("init postMessage: "+c.channel);var d="_FB_"+c.channel,e={send:function(a,c,d,e){__p&&__p();if(window===d){b("Log").error("Invalid windowref, equal to window (self)");throw new Error()}b("Log").debug("sending to: %s (%s)",c,e);var f=function(){try{d.postMessage("_FB_"+e+a,c)}catch(a){b("sdk.feature")("xdm_scribe_logging",!1)&&k("jssdk_error",{error:"POST_MESSAGE",extra:{message:a.message+", html/js/modules/XDM.js:231"}});throw a}};f()}};if(a){c.whenReady(e);return}window.addEventListener("message",b("wrapFunction")(function(a){__p&&__p();var e=a.data,f=a.origin||"native";if(!/^(https?:\/\/|native$)/.test(f)){b("Log").debug("Received message from invalid origin type: %s",f);return}if(f!=="native"&&!(j.test(location.hostname)||j.test(a.origin)))return;if(typeof e==="object"){if(a.data.xdArbiterSyn!=null||a.data.xdArbiterHandleMessage!=null||a.data.xdArbiterRegister!=null){b("Log").error("XDM at "+(window.name!=null&&window.name!==""?window.name:window==top?"top":"[no name]")+" ignoring message intended for XdArbiter. "+JSON.stringify(e));return}if(a.data.xdArbiterAck!=null){b("Log").debug("ignoring xdArbiterAck intended for initXdArbiter");return}if(a.data.xdArbiterRegisterAck!=null){b("Log").debug("ignoring xdArbiterRegisterAck intended for initXdArbiter");return}b("Log").warn("Received message of type %s from %s, expected a string. %s",typeof e,f,JSON.stringify(e));return}b("Log").debug("received message %s from %s",e,f);typeof e==="string"&&e.substring(0,d.length)==d&&(e=e.substring(d.length));c.onMessage(e,f)},"entry","onMessage"));c.whenReady(e);a=!0}}}());e.exports=a}),null);
__d("getFacebookOriginForTarget",["Log"],(function(a,b,c,d,e,f){function a(a,c){c===void 0&&(c=top);var d=0,e=!1,f=200;window.addEventListener("message",function(d){d.source===c&&d.data.xdArbiterAck&&(/\.facebook\.com$/.test(d.origin)&&/^https:/.test(d.origin)?e===!1&&(e=!0,b("Log").debug("initXdArbiter got xdArbiterAck from "+d.origin),a(d.origin)):b("Log").error("xdAbiterAck was not from Facebook: ",d.origin))},!1);c.postMessage({xdArbiterSyn:!0},"*");d=window.setInterval(function(){!e&&f>0?(f--,b("Log").debug("resending xdArbiterSyn"),c.postMessage({xdArbiterSyn:!0},"*")):window.clearInterval(d)},200)}e.exports=a}),null);
__d("resolveWindow",[],(function(a,b,c,d,e,f){__p&&__p();function a(a){__p&&__p();if(a==null)return null;var b=window;a=a.split(".");try{for(var c=0;c<a.length;c++){var d=a[c],e=/^frames\[[\'\"]?([a-zA-Z0-9\-_]+)[\'\"]?\]$/.exec(d);if(e)b=b.frames[e[1]];else if(d==="opener"||d==="parent"||d==="top")b=b[d];else return null}}catch(a){return null}return b}e.exports=a}),null);
__d("initXdArbiter",["QueryString","resolveWindow","getFacebookOriginForTarget","Log","XDM"],(function(a,b,c,d,e,f){__p&&__p();(function(){__p&&__p();var a=b("QueryString"),c=b("resolveWindow"),d=b("getFacebookOriginForTarget"),e=b("Log"),f=b("XDM");function g(a){return a?a.replace(/[\"\'<>\(\)\\@]/g,""):a}function h(){return!location.ancestorOrigins?!1:!/\.facebook\.com$/.test(location.ancestorOrigins[1])}function i(a,b,c){__p&&__p();if(!(window!=parent&&window.parent!=window.parent.parent)||h()){c("");return}var d=0,f=!1,g=200;window.addEventListener("message",function(a){if(a.source==parent.parent&&a.data.xdArbiterRegisterAck)if(/\.facebook\.com$/.test(a.origin)&&/^https:/.test(a.origin)){f=!0;e.debug("initXdArbiter got xdArbiterRegisterAck for "+a.data.xdArbiterRegisterAck+" from "+a.origin);c(a.data.xdArbiterRegisterAck);return}else e.error("xdAbiterRegisterAck was not from Facebook: ",a.origin)},!1);parent.parent.postMessage({xdArbiterRegister:!0,xdProxyName:a,origin:b},"*");d=window.setInterval(function(){if(!f&&g>0)g--,e.debug("resending xdArbiterRegister"),parent.parent.postMessage({xdArbiterRegister:!0,xdProxyName:a,origin:b},"*");else{window.clearInterval(d);if(g===0){e.error("xdAbiterRegisterAck not received");c("");return}}},200)}function j(a,b){var c=50;b=function(){--c||window.clearInterval(d);try{a(),window.clearInterval(d)}catch(a){}};var d=window.setInterval(b,50);b()}function k(){__p&&__p();var a=null;if(p.origin!=null){var b=/https?:\/\/[^\/]*/.exec(p.origin);a=b===null?null:b[0]}j(function(){__p&&__p();var b=c(p.relation);if(b!=null){b=b.frames["fb_xdm_frame_"+q];if(b!=null){if(b.location.search==="undefined")throw new Error("Proxy not ready");location.search===b.location.search?b.proxyMessage(o,a):e.error("Version mismatch: %s, %s",location.search,b.location.search)}else e.error("Couldn't get proxy window reference for relation %s",p.relation)}},50)}function l(){__p&&__p();var a=null;if(p.origin!=null){var b=/https?:\/\/[^\/]*/.exec(p.origin);a=b===null?null:b[0]}if(window.__fbNative&&window.__fbNative.postMessage)window.__fbNative.postMessage(o,a);else{b=function b(c){window.removeEventListener("fbNativeReady",b),window.__fbNative.postMessage(o,a)};window.addEventListener("fbNativeReady",b)}}var m=/#(.*)|$/.exec(document.URL),n=/#(.*)|$/.exec(window.location.href),o=m!==null&&m[1]?m[1]:n!==null&&n[1]?n[1]:"";window==top&&(location.hash="");if(!o){e.error("xd_arbiter.php loaded without a valid hash, referrer: %s",document.referrer);return}var p=a.decode(o,!0),q=location.protocol.replace(":","");if(p.relation){window==top&&/FBAN\/\w+;/i.test(navigator.userAgent)&&!/FBAN\/mLite;/.test(navigator.userAgent)?(e.info("Native proxy"),l()):(e.info("Legacy proxy to %s",p.relation),k());return}if(!new RegExp(q+"$").test(window.name)){e.info("Redirection to %s detected, aborting",q);return}m=g(p.transport);var r=g(p.channel),s=g(p.origin),t=g(p.xd_name);if(!/^https?/.test(s)){e.error("Invalid origin presented, aborting.");return}n=document.body;if(n===null){e.error("Invalid runtime environment (no document.body), aborting.");return}var u={};f.create({root:n,transport:m,channel:r+"_"+q,onMessage:function(b,f){__p&&__p();if(s!==f){e.info("Received message from unknown origin %s, expected %s.",f,s);return}var g=null,i=b;typeof b==="string"?/^FB_RPC:/.test(b)||(i=a.decode(b),g=i.relation):g=b.relation;if((g==null||g==="")&&h()){e.error("Can not use parent.parent to reach facebook.com");return}var j=g!=null&&g!=""&&typeof g==="string"?c(g):parent.parent;if(j==null)e.error("Could not reach facebook.com using %s",g);else{var k=function(a){try{j.postMessage({xdArbiterHandleMessage:!0,message:i,origin:s},a)}catch(a){e.error("Could not reach facebook.com using %s",g)}};u[j]!=null?k(u[j]):d(function(a){u[j]=a,k(a)},j)}},whenReady:function(b){window.proxyMessage=function(a,c){c===s?b.send(a,s,parent,r):e.error("Failed proxying to %s, expected %s",c,s)};var c={xd_action:"proxy_ready",logged_in:/\bc_user=/.test(document.cookie)};i(t,s,function(d){d!==""&&(c.registered=d),b.send(a.encode(c),s,parent,r)})}})})()}),null);__d("JSSDKConfig",[],{"features":{"allow_non_canvas_app_events":false,"error_handling":{"rate":4},"e2e_ping_tracking":{"rate":0.1},"xd_timeout":{"rate":1,"value":60000},"use_bundle":false,"should_log_response_error":true,"popup_blocker_scribe_logging":{"rate":100},"https_only_enforce_starting":2538809200000,"https_only_learn_more":"https:\/\/developers.facebook.com\/blog\/post\/2018\/06\/08\/enforce-https-facebook-login\/","https_only_scribe_logging":{"rate":1},"log_perf":{"rate":0.001},"use_cors_oauth_status":{"rate":100},"xd_arbiter_register_new":{"rate":100},"xd_arbiter_handle_message_new":{"rate":100}}});require("initXdArbiter"); require('initXdArbiter'); </script><b id="warning" style="display: none; color:red"> SECURITY WARNING: Please treat the URL above as you would your password and do not share it with anyone. See the <a href="https://l.facebook.com/l.php?u=https%3A%2F%2Fon.fb.me%2F1mXNHhm&h=AT3yF5edG0llRLfN7DdM84969UKCeaiLUHhws4r99wCpwo5WdmEe-unIrbXnhWXktCmNzoHF0smlnZJAU2FIrNb_Wp6I1dYsaADr6CFFedqEpqg1DZTiQLsakOGtanU5_hNoMh259MrwCIOCaCdK" target="_blank" rel="noopener nofollow" data-lynx-mode="asynclazy">Facebook Help Center</a> for more information. </b><script>if (window == top) { setTimeout(function() { document.getElementById("warning").style.display = 'block'; }, 2000);}</script></body></html>
I. Nội qui tham gia "Giúp tôi giải toán"
1. Không đưa câu hỏi linh tinh lên diễn đàn, chỉ đưa các bài mà mình không giải được hoặc các câu hỏi hay lên diễn đàn;
2. Không trả lời linh tinh, không phù hợp với nội dung câu hỏi trên diễn đàn.
3. Không "Đúng" vào các câu trả lời linh tinh nhằm gian lận điểm hỏi đáp.
Các bạn vi phạm 3 điều trên sẽ bị giáo viên của Online Math trừ hết điểm hỏi đáp, có thể bị khóa tài khoản hoặc bị cấm vĩnh viễn không đăng nhập vào trang web.
Ra màn hình chính nếu thấy biểu tượng Recycle Bin thì đó là hộp thư rác
bik ruif