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Explain Solution R.D.Sharma Class 12 Chapter 3 Inverse Trigonometric Function Exercise Multiple Choice Questions Question 40 maths Textbook Solution.

Answers (1)

Answer: [2 \pi, 3 \pi]

Hint: The principal value of branch of \mathrm{y}=\cos ^{-1} x_{\text {is }}[0, \pi]

Given: \cos ^{-1} x_{\text {is }}[0, \pi]

Solution:

So, the one branch of \cos ^{-1} x other than principal value is[2 \pi, 3 \pi]

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