Which pythagorean identity is correct? A. sin^2(theta)+1=cos^2(theta) B. tan^2(theta)+1=sec^2(theta) C. 1-cot^2(theta)=csc^2(theta) D. 1-cos^2(theta)=tan^2(theta)

Question

asked Sep 23, 2019 117k views

2 Answers

Rudimenter · Answer 1 · 2019-09-28T14:32:22+0000

Answer:

The pythagorean identity that is correct is option B:

B. tan^2(theta)+1=sec^2(theta)

Explanation:

The pythagorean identities are:

1.) sin^2(theta) + cos^2(theta) = 1

2.) tan^2(theta) + 1 = sec^2(theta)

3.) 1 + cot^2(theta) = csc^2(theta)

Then the pythagorean identity that is correct is option B:

B. tan^2(theta)+1=sec^2(theta)