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JEE Mains · Maths · STD 12 - 2. inverse trigonometric function

यदि फलन \(f(x)=\cos ^{-1}\left(\frac{2-|x|}{4}\right)+\left(\log _e(3-x)\right)^{-1}\) का प्राँत \([-\alpha, \beta)-\{y\}\) है, तो \(\alpha+\beta+\gamma\) = ...........

  1. A \(12\)
  2. B \(9\)
  3. C \(11\)
  4. D \(8\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(11\)

Step-by-step Solution

Detailed explanation

\( -1 \leq\left|\frac{2-|x|}{4}\right| \leq 1 \) \( \Rightarrow\left|\frac{2-|x|}{4}\right| \leq 1 \) \( -4 \leq 2-|x| \leq 4 \) \( -6 \leq-|x| \leq 2 \) \( -2 \leq|x| \leq 6 \) \( |x| \leq 6 \) \( \Rightarrow x \in[-6,6]\) \(................(1)\) Now, \(3-x \neq 1\) And…
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