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Find |vecaxxvecb|, if veca=hati-7hatj+7h...

Find `|vecaxxvecb|,` if `veca=hati-7hatj+7hatkandvecb=3hati-2hatj+2hatk`.

Text Solution

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The correct Answer is:
`19sqrt(2)`
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Find |vecaxxvecb| , if veca=2hati-7hatj+7hatk and vecb=3hati-2hatj+2hatk

Find |vecaxxvecb| , if veca=2hati+hatj+3hatkand vecb=3hati+5hatj-2hatk

Knowledge Check

  • If vecA= 5hati+6hatj+3hatk and vecB=6hati-2hatj-6hatk , then

    A
    `vecA and vecB` are perpendicular
    B
    `vecA xxvecB=vecBxxvecA`
    C
    `vecA and vecB` have the same magnitude
    D
    `vecA*vecB=0`

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    Explore conceptually related problems

    Find a unit vector parallel to the vector veca+vecb where veca=3hati+2hatj+2hatk and vecb=hati+2hatj-2hatk .

    Find a unit vector perpendicular to each of the vectors (veca+vecb)and(veca-vecb) , where veca=hati+hatj+hatk,vecb=hati+2hatj+3hatk .

    Find the area the parallelogram whose adjacent sides are determined by the vectors veca=hati-hatj+3hatkandvecb=2hati-7hatj+hatk .

    Find a vector of magnitude 5 units and parallel to the resultant of the vectors veca=2hati+3hatj-hatkandvecb=hati-2hatj+hatk .

    Find the area of the parallelogram whose adjacent sides are given by the vectors veca=hati-hatj+3hatk and vecb=2hati-7hatj+hatk

    Find the area of a parallelogram whose adjacent sides are given by the vectors veca=3hati+hatj+4hatkandvecb=hati-hatj+hatk

    Find angle theta between the vectors veca=hati+hatj-hatkandvecb=hati+hatj+hatk .

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