Question

Which of the following are identities
Check all that apply
sin^2x-cos^x=1
sin^2x=1-cos^2x
tan^2x=sec^2x-1
cot^2x+csc^2x=1

Answer 1

the correct identities are:

1 + tan^2x = sec^2x
1 + cot^2x = csc^2x
sin^2x + cos^2x = 1

Answer 2

@cutiecomittee123
you blocked me ?

Answer 3

\[\sin ^2x+\cos ^2x=1\]
\[\sec ^2x-\tan ^2x=1\]
\[\csc ^2x-\cot ^2x=1\]
rearrange and see which apply.

Answer 4

All three of those work because
sin^2x=1-cos^2x
tan^2x=sec^2x-1
cot^2x+csc^2x=1

Answer 5

wait only the first two. not the last one that I listed

Answer 6

correct.