Question

, Which of the following functions does not have a derivative of zero?

a. y=-1/1000
b. y=4(pi)^2-9
c. y=sin^2x+cos^2x
d. y=cscxtanxcosx
e. all do

please and thank youuu :)

Answer 1

option d i cnt gt..

Answer 2

csc(x)*tan(x)*cos(x)=1/sin(x)*sin(x)/cos(x)*cos(x)=1/cos(x)*cos(x)=1
The answer is C

Answer 3

Thank you :)

Answer 4

there is no such a opyion tht is non zero element aftr derivative

Answer 5

you are welcome