What is the scalar projection of vector a=(12,1,3) on vector b=(1,2,2)?
Vector a=(12,1,3) की vector b=(1,2,2) पर scalar projection क्या है?
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Correct Answer
C. 20 / 3
ExplanationStep 1: scalar projection is a·b/|b|. Step 2: a·b=20 and |b|=3, so the projection is 20/3. Step 3: tip: scalar projection uses |b| in the denominator, not |b|^2.
Step 1: scalar projection = a·b/|b| है। Step 2: a·b=20 और |b|=3, इसलिए projection 20/3 है। Step 3: tip: projection में denominator |b| होता है, |b|^2 नहीं।