The equation k cos x –3 sin x = k + 1 is solvable only if k belongs to the interval
Mathematics · JEE Advanced · NTA Exams — Trigonometry
The equation k cos x –3 sin x = k + 1 is solvable only if k belongs to the interval
- [k, + ∞]
- [–4, 4]
- (–∞ , 4]
- None of these
Answer
(C) (– ∞ , 4]
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