2016 · Q79
What is (1 + cos A)/sin A + ... equal to?
Elementary MathematicsTrigonometry
- A1 + A/ A
- B1 - A/ A
- C1 + A/ A
- D1 - A/ A
Explanation
The stem is truncated ('(1+cosA)/sinA + ...') and options A/C and B/D are duplicated, so the intended expression cannot be recovered from the source. The stored key A is therefore retained unchanged. Note: key disputed — verify against the official UPSC key.