Question

derivative of sin^2x

Answer 1

you have to use the power rule and chain rule

Answer 2

sin^2x=(1-cos2x)/2

Answer 3

actually it should be 2sinxcosx

Answer 4

2sinxcosx=sin2x
but in this case, \[\sin ^{2}x\]

Answer 5

sin2x would be 2cos2x

Answer 6

no, sin2x=2sinxcosx

Answer 7

http://www.derivative-calculator.net/

you go ahead and plug those in. Just to show you.
you're not applying chain rule correctly.

Answer 8

oh, big misunderstanding! I mean sin2x=2sinxcosx not derivative of sin2x equals 2sinxcosx

Answer 9

ok