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Dmitry [639]
3 years ago
8

which of the following is an identity tan^2x+cos^2x=1, sin^2x cot^2x + cos^2 tan^2x = 1, sinx - cosx +1 = tanx, (1-2sin^2x)csc^x

= 4cos^x-2
Mathematics
1 answer:
lana66690 [7]3 years ago
7 0
The first one isnt  because sin^2 x + cos^2 x = 1

the second one is an identity because it simplifies to sin^2 x + cos^2 x = 1
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