What is ∫ cos(7x) dx?
∫ cos(7x) dx क्या होगा?
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Correct Answer
B. sin(7x) / 7 + C
ExplanationStep 1: The integral of cosine is sine and we divide by the inside coefficient. Step 2: ∫cos(7x)dx = sin(7x)/7 + C. Step 3: The reverse of chain rule becomes division in integration.
Step 1: cos का integral sin होता है और अंदर के coefficient से divide करते हैं। Step 2: ∫cos(7x)dx = sin(7x)/7 + C। Step 3: Chain rule का reverse integration में division बनता है।