A. 7
ExplanationStep 1: Identify function value. Step 2: Putting x=2 gives 2×2+3=7. so the correct option follows. Step 3: In exam questions apply the formula first.
Step 1: function value पहचानें। Step 2: x=2 रखने पर 2×2+3=7 मिलता है। इसलिए सही विकल्प मिलता है। Step 3: ऐसे प्रश्नों में पहले सूत्र लगाएँ।
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