i think there is an identity for tanxsec^2x but i cant find it

For further actions, you may consider blocking this person and/or reporting abuse

We're a place where learners ask for help for their tasks and share their knowledge.

i think there is an identity for tanxsec^2x but i cant find it

For further actions, you may consider blocking this person and/or reporting abuse

gbbg123 -

Joel Logan -

Phixion -

gbbg123 -

Grand Born -

Kingoflions -

Joel Logan -

MadMoe -

niki james -

Jackie D -

D_Generation_X -

cha-cha -

mccube86 -

cha-cha -

coolmom -

8B8 -

Michael -

Michael -

CCAARLL!! That kills people! -

dzhdhdfhd -

## Answers (1)

tan(x)*sec²(x) = sin(x)/cos^3(x)

This looks a bit complicated, but it also looks like the answer is near zero, so you can use a small approximation (tan(x) = x, sec(x) = 1) formula, so you get 2x+2x = 0, x=0 . This is an exact answer, actually.