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What is the length of projection of `vec(A)=3hat(i)+4hat(j)+5hat(k)` on `xy` plane ?A. `5`B. `3`C. `5sqrt2`D. `4` |
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Answer» Correct Answer - A Legnth of projection on `xy` plane is `=sqrt(3^(2)+4^(2))=5` |
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