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JEE Mains · Maths · STD 11 - Trigonometrical equations

माना अन्तराल \((0,10)\) में समीकरण \(\sin x=\cos ^2 x\) के हलों की संख्या है।

  1. A \(2\)
  2. B \(4\)
  3. C \(6\)
  4. D \(8\)
Verified Solution

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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