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Explain Solution R.D.Sharma Class 12 Chapter 3 Inverse Trigonometric Function Exercise Multiple Choice Questions Question 41 maths Textbook Solution.

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Answer: [0, \pi]-\left\{\frac{\pi}{2}\right\}

Hint: The principal branch is a function which selects one branch of multi-valued function.

Given: Principal value of branch of  \sec ^{-1} x


The principal value of branch of y=\sec ^{-1} x_{\text {is }}[0, \pi]-\left\{\frac{\pi}{2}\right\} Alignment needs improvement


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