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42 votes
42 votes
Verify the Identity.

tan²xsin²x = tan²x-sin²x

User Durgaprasad
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1 Answer

9 votes
9 votes

tan²(x) - sin²(x) = sin²(x)/cos²(x) - sin²(x)

… = sin²(x) (1/cos²(x) - 1)

… = sin²(x) (sec²(x) - 1)

… = sin²(x) tan²(x)

User Marc Cohen
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