\(\sec^{-1}\left(\frac{1}{2}\right)\) के बारे में सही कथन क्या है?
What is the correct statement about \(\sec^{-1}\left(\frac{1}{2}\right)\)?
Explanation opens after your attempt
B. यह परिभाषित नहीं हैIt is not defined
Concept
The function \(\sec^{-1}x\) is defined when \(\left|x\right|\ge1\). Here \(\left|\frac{1}{2}\right|<1\), so it is not defined.
Why this answer is correct
The correct answer is B. यह परिभाषित नहीं है / It is not defined. The function \(\sec^{-1}x\) is defined when \(\left|x\right|\ge1\). Here \(\left|\frac{1}{2}\right|<1\), so it is not defined.
Exam Tip
\(\sec^{-1}x\) तभी परिभाषित है जब \(\left|x\right|\ge1\)। यहाँ \(\left|\frac{1}{2}\right|<1\), इसलिए यह परिभाषित नहीं है।
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