Which of the following expressions is equivalent to: 1/(1+ sin(θ)) + 1/(1-sin(θ)) a) 2 cos² (θ) b) 2 sec²(θ) c) cos² (θ) d) 2

Question

Which of the following expressions is equivalent to:
1/(1+ sin(θ)) + 1/(1-sin(θ))
a) 2 cos² (θ)
b) 2 sec²(θ)
c) cos² (θ)
d) 2 csc²(θ)

Kunduz · Accepted Answer

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