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Evaluate tan 75° + cot 65°.(a) Cot 25° + Tan 15°(b) Cot 25° – Tan 15°(c) Cot 15° + Tan 25°(d) Cot 15° – Tan 25°This question was posed to me during a job interview.Question is taken from Trigonometric Ratios of Complementary Angles topic in division Trigonometry of Mathematics – Class 10

Answer» RIGHT option is (C) COT 15° + Tan 25°

Easy EXPLANATION: Tan 75° + Cot 65° = Tan (90° – 15°) + Cot (90° – 25°)

= Cot 15° + Tan 25°


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