K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

bạn ấn vào đúng 0 sẽ ra kết quả, mình làm bài này rồi dễ lắm

26 tháng 1 2016

đừng tin thằng thạch nó nói dối đấy!

22 tháng 4 2022

13/50+74%+41/100+0,59%

= 13/50 + 74/100 + 41/100 + 59/100

= 13/50 + ( 74/100 + 41/100 + 59/100 ) 

= 13/50 + 174/100

= 13/50 + 87/50

= 100/50 

= 2

Chúc học tốt!

22 tháng 4 2022

13/50 + 74% + 41/100 + 0,59

= 26/100 + 74/100 + 41/100 + 59/100

= ( 26/100 + 74/100 ) + ( 41/100 + 59/100 )

=          100/100         +              100/100

=         200/100

=          2

bạn có thể kham thảo cách làm của mình , thấy đúng thì tick cho mình nhé , cảm ơn !

27 tháng 1 2016

A=2^100-2^99+2^98-2^97+..+2^2-2

=>2A=2^101-2^100+2^99-2^98+...+2^3-2^2

=>2A+A=(2^101-2^100+2^99-2^98+..+2^3-2^2)+(2^100-2^99+2^98-2^97+..+2^2-2)

=>3A=2^101-2

=>A=(2^101-2)/3

27 tháng 1 2016

(2/101 - 2)/3 , tick nha

52. 53 không chia hết cho 3 nhé bạn! Đề sai thì phải

27 tháng 2 2017

Question VIII. Matching

1) nối với a)

2) nối với b)

3) nối với e)

4) nối với c)

5) nối với f)

6) nối với d)

27 tháng 2 2017

1a 2b 3e 4c 5f 6d

27 tháng 7 2017

integral_(3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) - 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))))^(3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) + 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3))))) (-2 - 5 x + 4 x^2 - 3 x^3 + x^4) dx = -2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) - 1/5 (3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) - 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))))^5 + 1/5 (3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) + 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))))^5 - 5 (-1/2 (3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) - 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))))^2 + 1/2 (3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) + 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))))^2) + 4 (-1/3 (3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) - 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))))^3 + 1/3 (3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) + 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))))^3) - 3 (-1/4 (3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) - 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))))^4 + 1/4 (3/4 + 1/(4 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))) + 1/2 sqrt(-5/6 + 53/3 (2/(353 + 3 sqrt(80013)))^(1/3) - 1/3 (1/2 (353 + 3 sqrt(80013)))^(1/3) + 19/2 sqrt(3/(-5 - 212 (2/(353 + 3 sqrt(80013)))^(1/3) + 2 2^(2/3) (353 + 3 sqrt(80013))^(1/3)))))^4)≈-10.0747

PS: Bài này cũng không chắc nhé

27 tháng 7 2017

Dùng hệ phương trình vào giải:
\(x^4-3x^3+4x^2-5x-2\)

\(\Leftrightarrow x\left\{x\left[\left(x-3\right)x+4\right]-5\right\}-2\)

\(\Rightarrow x=\left\{0;1\right\}\)

Vậy nghiêm là 0 hoặc 1

25 tháng 2 2021

a) S xq: (3,1x3,1)x4=38,44m2

 S tp:(3,1x3,1)x6=57,66m2

b) S xp:(5x5)x4=100m2

 S tp: (5x5)x6=150m2

12 tháng 10 2021

tham khảo  MY MOM IS GREAT DOING HOMEWORK AND IS TERRIBLE COOKING AND MY IS VERY FRIENDLY AND MY DAD IS ASO HELP OTHER PEOPLE