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Find the cross product of vecA=3hati+4ha...

Find the cross product of `vecA=3hati+4hatj` and `vecB=(-3hati+4hatj)`

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`vecAxxvecB=(3hati+4hatj)xx(-3hati+4hatj)=(3hatixx-3hati)+(3hatixx4hatj)+(4hatjxx-3hati)+(4hatjxx4hatj)=0+12hatk-12(-hatk)+16(0)=24hatk`
`|vecAxxvecB|=24`units.
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SUBHASH PUBLICATION-MOTION IN PLANE-NUMERICALS WITH SOLUTIONS
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  12. Write the values of the following. hatk.(hatixxhatk)

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