B. 2cos 2x / 2cos 2x
ExplanationStep 1: Apply chain rule. Step 2: Derivative of sin 2x is cos 2x × 2 = 2cos 2x. Step 3: In trigonometric derivatives multiply derivative of the inside angle.
Step 1: Chain rule लगाएं। Step 2: sin 2x का derivative cos 2x × 2 = 2cos 2x है। Step 3: Trigonometric derivative में अंदर वाले angle का derivative multiply करें।
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