Medium Math Class 12 Level 1

What is ∫ cos(3x) dx?

∫ cos(3x) dx क्या होगा?

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Correct Answer

B. sin(3x) / 3 + C

Explanation

Step 1: The integral of cosine is sine and we divide by the inside coefficient. Step 2: ∫cos(3x)dx = sin(3x)/3 + 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(3x)dx = sin(3x)/3 + C। Step 3: Chain rule का reverse integration में division बनता है।

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