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Zarrin [17]
3 years ago
13

Verify the identity sin^2x = cos^2x sec^2x-cos^2x

Mathematics
1 answer:
wlad13 [49]3 years ago
7 0

Answer:

Step-by-step explanation:

The right side of the identity

cos^{2} x sec^{2} x  -  cos^{2} x\\= cos^{2} x (\frac{1}{cos^{2} x} ) - cos^{2} x\\= 1 - cos^{2} x\\= sin^{2} x

which is the same as the left side of the identity

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