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Post-UTME Mathematics 2016 Objective — Question 53

Question 53 of 60 from the Post-UTME Screening (Post-UTME) Mathematics 2016 Objective paper, with the correct answer and a full explanation.

Trigonometry 3. 1/(1+sinθ) + 1/(1-sinθ) = ?

A. sec²θ
B. 2sec²θCorrect
C. cosec²θ
D. 2cosec²θ

Explanation

Combining over a common denominator: 2/(1-sin²θ) = 2/cos²θ = 2sec²θ.

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