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Which trigonometric ratios are positive in the fourth quadrant?(a) Cos, Sin(b) Sec, Cos(c) Sin, Cot(d) Tan, CotThe question was asked in a job interview.This key question is from Trigonometric Ratios of Complementary Angles in section Trigonometry of Mathematics – Class 10

Answer»

The correct answer is (B) SEC, Cos

The best I can EXPLAIN: A plane is divided into four INFINITE quadrants. The trigonometric ratios that are positive in the fourth quadrant are secant, COSINE and the rest of all trigonometric ratios are negative in this quadrant.



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