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

If `veca`=`2hati+2hatj-hatk `, `vecb`=`hati+2hatj-2hatk `, and `vecc`=`2hati-hatj+4hatk ` then find the projection of `vecb+vecc` on `veca`.

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