A. 0
ExplanationStep 1: Identify the concept: this is inverse tangent value. Step 2: tan 0 = 0 so tan^-1(0)=0. Step 3: Remember zero as the simplest tan inverse value.
Step 1: concept पहचानें: यह inverse tangent value है। Step 2: tan 0 = 0 होता है इसलिए tan^-1(0)=0 है। Step 3: tan inverse की सबसे simple value zero याद रखें।
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