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Mathematics, 30.11.2021 18:20 stef76
Verify the identity by using trigonometric identities: csc^2(x) - 2csc(x)cot(x) + cot^2 = tan^2(x/2)
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Verify the identity by using trigonometric identities:
csc^2(x) - 2csc(x)cot(x) + cot^2 = tan^2(x/...
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