Cho mình xin cách giải và đáp án đúng
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\(\dfrac{1}{2}\times\dfrac{2}{3}\times\dfrac{3}{4}\times\dfrac{4}{5}\times100\)
\(=\dfrac{1}{2}\times\dfrac{2}{3}\times\dfrac{3}{4}\times\dfrac{4}{5}\times\dfrac{100}{1}\)
\(=\dfrac{1\times2\times3\times4\times100}{2\times3\times4\times5\times1}\)
\(=\dfrac{100}{5}\)
\(=20\)
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kết quả đúng là 1,519821606041,bằng lời giải CASIO nha
TK CHO MK NHA BẠN
lan anh le trình bày số cụ thể chứ không phải ......41 đâu bn
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#include <bits/stdc++.h>
using namespace std;
int main (){
int n;
cin >> n;
int a[n];
long long t=0,k=0;
for (int i=1;i<=n;i++) cin >> a[i];
for (int i=1;i<=n;i++) {
int lt=1;
for (int j=1;j<=i;j++)
lt=lt*a[i];
t=t+lt;
}
cout << t;
return 0;
}
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She advised me TO EAT an apple everyday to stay heathly.
![](https://rs.olm.vn/images/avt/0.png?1311)
allow, permit, advise, recommend ‘
_ Nếu có túc từ, ta phải dùng ‘ to-V’ . Ngược lại dùng V-ing
She advised me TO EAT an apple everyday to stay heathly.
![](https://rs.olm.vn/images/avt/0.png?1311)
She advised me TO EAT an apple everyday to stay heathly.
![](https://rs.olm.vn/images/avt/0.png?1311)
She advised me TO EAT an apple everyday to stay heathly.
![](https://rs.olm.vn/images/avt/0.png?1311)
She advised me TO EAT an apple everyday to stay heathly.
\(\sqrt{2}cos\left(2x-\dfrac{\pi}{15}\right)-3=0\Leftrightarrow cos\left(2x-\dfrac{\pi}{15}\right)=\dfrac{3}{\sqrt{2}}\)
Do \(\dfrac{3}{\sqrt{2}}>1\) \(\Rightarrow\) phương trình vô nghiệm
A đúng