Question

sin^2(t) + tan^2(t)+cos^2(t) equals:

Answer 1

\(sec^2 \theta\)

Answer 2

You just have to know some trig identities: sin^2(t) + cos^(t) = 1
and then 1 + tan^2(t) = sec^2(t)
Enjoy!

Answer 3

Use:

\[\sin^2 \theta + \cos^2 \theta = 1\]

\[1 + \tan^2 \theta = \sec^2 \theta\]

Answer 4

Can you show me how you got that?

Answer 5

memorise them

Answer 6

See:

Rearrange the terms:

\[(\sin^2 \theta + \cos^2 \theta) + \tan^2 \theta\]

Use first identity here..

Answer 7

I got it, thank you!

Answer 8

or derive them, cos^2(x)+sin^2(x) = 1 devide all by cos^(x) and see what happens or devide them all by sin^2(x) and see what happens...

Answer 9

Welcome dear..