B. 2 / 2
ExplanationStep 1: tan45° = 1. Step 2: tan²45° + 1 = 1² + 1 = 2. Step 3: Remember tan value at 45° is 1.
Step 1: tan45° = 1 होता है। Step 2: tan²45° + 1 = 1² + 1 = 2। Step 3: 45° पर tan की value 1 याद रखें।
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