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Need solution for RD Sharma maths class 12 chapter 3 Inverse Trigonometric Functions exercise  Very short answer question 47 math

Answers (1)

Answer: \phi

Given:

\sec ^{-1}\left(\frac{1}{2}\right)

Hint: The range of \sec  is (-1, 1) .

Solution:

The value of \sec ^{-1}\left(\frac{1}{2}\right)  is undefined as it is outside the range,

R-(-1, 1)

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