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The solutions of a trigonometric equation for which ___________ are called principal solutions.(a) 0 < x < 2π(b) 0 ≤ x < π(c) 0 ≤ x < 2π(d) 0 ≤ x < nπI got this question during an internship interview.My query is from Trigonometric Equations topic in portion Trigonometric Functions of Mathematics – Class 11

Answer»

The CORRECT choice is (c) 0 ≤ x < 2π

To explain I would say: The solutions of a TRIGONOMETRIC equation for which 0 ≤ x < 2π are CALLED principal solutions. x should lie between 0 and 2π except 2π.



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