Question

find the derivative of y=tanx

Answer 1

derivative of tanx is sec^2(x)

so you need the proof?

Answer 2

yes pls

Answer 3

d sin/cos
=d ((cos)(cos)-(sin)(-sin))/ (cos^2)
=1/cos^2
=sec^2

Answer 4

that^ is the quotient rule.

Answer 5

k thnx