Question

Find the derivative of the function.
y = a7 + cos7 x
is this righ? -7cos^6x sinx

Answer 1

What is a?

Answer 2

yes.

Answer 3

a must be constant

Answer 4

a^7+cos^7 X ( X is not with 7)

Answer 5

Then yes, it's correct :)

Answer 6

you are correct.

Answer 7

you can write that as (cos(x))^7

Answer 8

for future reference :D

Answer 9

no its not lol

Answer 10

im doing an anline quiz

Answer 11

that wasnt the answer guys

Answer 12

maybe you didn't type it in right.

Answer 13

or using latex, u could write as
\[\cos^7x\]
`\[\cos^7x\]`
what were the options? i don't see any mistake here....

Answer 14

u should have put brackets!

Answer 15

-7(cos^6 x)( sinx)

Answer 16

can u guys help me with this question

Answer 17

How would you do it?

Answer 18

i have no idea

Answer 19

baldymcgee6

Answer 20

[e^u]' = e^u * du/dx

Answer 21

[e^(4tsin(2t))]' = e^(4tsin(2t)) * [4tsin(2t)]'

Answer 22

okayyy...

Answer 23

that's not the final answer, you still need to differentiate the rest..

Answer 24

3pi/4

Answer 25

whats the derivative of sin2t

Answer 26

What do you think it is?

Answer 27

use the chain rule

Answer 28

-cos2t

Answer 29

[sin(2t)]' = cos(2t) * [2t]'