B. 3 / 2
ExplanationStep 1: Identify definite integral. Step 2: Applying limits to x²/2 gives 4/2-1/2=3/2. so the correct option follows. Step 3: In exam questions apply the formula first.
Step 1: definite integral पहचानें। Step 2: x²/2 में limits लगाने पर 4/2-1/2=3/2 है। इसलिए सही विकल्प मिलता है। Step 3: ऐसे प्रश्नों में पहले सूत्र लगाएँ।
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