B. 17 / 17
ExplanationStep 1: Use modulus formula |a+ib| = √(a²+b²). Step 2: √(15²+8²)=√289=17. Step 3: Understand modulus like distance formula.
Step 1: Modulus formula |a+ib| = √(a²+b²) लगाएं। Step 2: √(15²+8²)=√289=17। Step 3: Modulus को distance formula की तरह समझें।
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