A solution of the equation cos 2 θ + sin θ + 1 = 0, lies in the interval
Mathematics · JEE Main · NTA Exams — Trigonometry
A solution of the equation cos2 θ + sin θ + 1 = 0, lies in the interval
- (–π/4, π/4)
- (π/4, 3π/4)
- (3π/4, 5π/4)
- (5π/4, 7π/4)
Answer
(D) (5 π /4, 7 π /4)
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