JEE Mains · Maths · STD 11 - Trigonometrical equations
The number of solutions of the equation \(\sin x=\) \(\cos ^{2} x\) in the interval \((0,10)\) is
- A \(2\)
- B \(4\)
- C \(6\)
- D \(8\)
Answer & Solution
Correct Answer
(B) \(4\)
Step-by-step Solution
Detailed explanation
\(\sin ^{2} x+\sin x-1=0\) \(\sin x=\frac{-1+\sqrt{5}}{2}=+v e\) Only \(4\) roots
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