QUESTION
Vector a = 3i + 4j का magnitude क्या है?
What is the magnitude of vector a = 3i + 4j?
CORRECT ANSWER
A
5
EXPLANATION INSIDE
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Step 1: concept पहचानें: यह vector magnitude है। Step 2: Magnitude = √(3²+4²)=√25=5। Step 3: 3-4-5 right triangle याद रखें।