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If veca = hati+2hatj+hatk, vecb = 2hati-...

If `veca` = `hati+2hatj+hatk`, `vecb` = `2hati- 2hatj + 2hatk` and `vecc` = `hati + 2hatj + hatk` then

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Find veca. (vecb xx vecc) if veca=2hati + hatj + 3hatk , vecb= -hati + 2hatj + hatk and vecc = 3hati + hatj + 2hatk .

Find the altitude of a parallelopiped determined by the vectors veca=hati+hatj+hatk, vecb=2hati +4hatj-hatk and vecc=hati+hatj+3hatk , if the base is taken to the parallelogram determined by veca and vecb .

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  • If veca = hati+2hatj-hatk , vecb = hati+hatj+2hatk , vecc = 2hati-hatj then

    A
    `vecabotvecb`
    B
    `vecbbotvecc`
    C
    `vecabotvecc`
    D
    no pair of vectors are perpendicular

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