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Verify the identity. Please explain step by step.

Verify the identity. Please explain step by step.
asked 13.8k views
3 votes
Verify the identity. Please explain step by step.

Verify the identity. Please explain step by step.-example-1
asked
User Retronym
by
8.3k points

1 Answer

5 votes

Explanation:

sin²α − sin⁴α

Factor out sin²α.

sin²α (1 − sin²α)

Use Pythagorean theorem.

(1 − cos²α) cos²α

Distribute.

cos²α − cos⁴α

answered
User Ercan
by
8.3k points
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