Easy Math Class 12 Level 5

What is the principal value of tan⁻¹(-1)?

tan⁻¹(-1) का principal value क्या है?

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Correct Answer

B. -π / 4

Explanation

Step 1: Identify inverse trigonometry. Step 2: tan(-π/4)=-1 and -π/4 is in the principal range. so the correct option follows. Step 3: In exam questions apply the formula first.

Step 1: inverse trigonometry पहचानें। Step 2: tan(-π/4)=-1 और -π/4 principal range में है। इसलिए सही विकल्प मिलता है। Step 3: ऐसे प्रश्नों में पहले सूत्र लगाएँ।

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