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Find the scalar projection of the vector...

Find the scalar projection of the vector `vec a= 3 hat i+6 hat j+9 hat k` on `vec b= 2 hat i+2 hat j-hat k`.

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Obtain the volume of the parallelopiped whose sides are vectors vec a= 2 hat i - 3 hat j + 4 hat k , vec b= hat i +2 hat j - hat k , vec c= 3 hat i - hat j +2 hat k . Also find the vector (vec a×vec b)×vec c .

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SHARAM PUBLICATION-QUESTION PAPER 2010-EXERCISE
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