Mathematics
Mathematics, 03.02.2020 02:46, iop123456

Which of the following is a trigonometric identity?
a. cot theta + tan theta = 1
b. sec^2theta + csc^2theta = 1
c. tan^2theta = sin^2theta × sec^2theta
d. cos^2theta = sec^2theta × tan^2theta

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Which of the following is a trigonometric identity?
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b. sec...

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