Derivative of Trig Functions + identities

d/dx cosx

-sinx

d/dx sinx

cosx

d/dx tanx

sec²x

d/dx secx

secxtanx

d/dx cotx

-csc²x

d/dx cscx

-cscxcotx

d/dx arctan

1/ (1 + x²)

d/dx arcsin

1/ (root( 1 - x²))

d/dx arccos

-1/ (root( 1 - x²))

d/dx logbx

1/ (x * lnb)

What does sin² + cos² equal to

1

What does 1 - tan² equal to

sec²

On a sinx graph, when does it equal to 1 and when does it equal to 0

1: pi/2, 3pi/2

0: pi, 2pi

Derivative of logbx

1/x * lnb

Derivative of ln|x|

1/x