B. 2x / 2x
ExplanationStep 1: Use power rule d/dx x^n = nx^(n-1). Step 2: The derivative of x² is 2x. Step 3: Bring the power as coefficient and reduce the power by one.
Step 1: Power rule d/dx x^n = nx^(n-1) लगाएं। Step 2: x² का derivative 2x होता है। Step 3: Power को coefficient बनाकर power एक घटाएं।
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