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Lady bird [3.3K]
3 years ago
10

Verify the identity. Please explain step by step.

Mathematics
1 answer:
Westkost [7]3 years ago
7 0

Step-by-step explanation:

sin²α − sin⁴α

Factor out sin²α.

sin²α (1 − sin²α)

Use Pythagorean theorem.

(1 − cos²α) cos²α

Distribute.

cos²α − cos⁴α

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Step-by-step explanation:

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