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JEE Mains · Maths · STD 11 - Trigonometrical equations

वह सभी युग्म \(( x , y )\) जो असमिका \(2 \sqrt{\sin ^{2} x-2 \sin x+5} \cdot \frac{1}{4^{\sin ^{2} y}} \leq 1\) को संतुष्ट करते हैं, निम्न में से किस समीकरण को भी संतुष्ट करते हैं ?

  1. A \(2\left| {\sin \,x} \right| = 3\sin \,y\)
  2. B \(\sin \,x = \left| {\sin \,y} \right|\)
  3. C \(2\,sin\, x = sin\, y\)
  4. D \(sin\, x = 2\, sin\, y\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\sin \,x = \left| {\sin \,y} \right|\)

Step-by-step Solution

Detailed explanation

\(2^{\sqrt{\sin ^{2} x-2 \sin x+5}}-4^{-\sin ^{2} y} \leq 1\) \( \Rightarrow \,{2^{\sqrt {{{(\sin \,x - 1)}^2} + 4} }}\, \leqslant {4^{{{\sin }^2}y}}\)…
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