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JEE Mains · Maths · STD 11 - 3. trignometrical ratios,functions and identities

माना समीकरण \(( k +1) \tan ^{2} x -\sqrt{2} \cdot \lambda \tan x =\) \((1- k ), k (\neq-1),(\lambda \in R )\) के \(\alpha\) तथा \(\beta\) दो वास्तविक मूल हैं। यदि \(\tan ^{2}(\alpha+\beta)=50\) है, तो \(\lambda\) का एक मान है

  1. A \(5\)
  2. B \(10\)
  3. C \(5\sqrt 2\)
  4. D \(10\sqrt 2\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(10\)

Step-by-step Solution

Detailed explanation

\(\tan \alpha+\tan \beta=\frac{\lambda \sqrt{2}}{\mathrm{k}+1}\) \(\tan \alpha . \tan \beta=\frac{\mathrm{k}-1}{\mathrm{k}+1}\)…
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