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AP EAMCET · Maths · Trigonometric Ratios & Identities

If \(\sin (\alpha+\beta)=5 \sin (\alpha-\beta)\), then \(\frac{\sin 2 \beta}{5-\cos 2 \beta}=\)

  1. A \(\tan (\alpha+\beta)\)
  2. B \(\cot (\alpha+\beta)\)
  3. C \(\cot (\alpha-\beta)\)
  4. D \(\tan (\alpha-\beta)\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\tan (\alpha-\beta)\)

Step-by-step Solution

Detailed explanation

\(\begin{aligned} & \text { } \sin (\alpha+\beta)=5 \sin (\alpha-\beta) \\ & \Rightarrow \sin \alpha \cdot \cos \beta+\cos \alpha \cdot \sin \beta\end{aligned}\)…