Medium Math Class 12 Level 4

What is the principal value of cos^(-1)(0)? (Level 4 practice)

cos^(-1)(0) का principal value क्या है? (लेवल 4 अभ्यास)

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Correct Answer

B. π / 2

Explanation

Step 1: Recognize the standard cosine angle. Step 2: Since cos π/2 = 0, the principal value is π/2. Step 3: On the unit circle, cosine is zero at π/2.

Step 1: cos के standard angle को पहचानें। Step 2: cos π/2 = 0 होता है, इसलिए principal value π/2 है। Step 3: Unit circle में x-coordinate 0 होने पर angle π/2 होता है।

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