Let A vector veca =alpha hati + 2hatj +...

Let A vector `veca =alpha hati + 2hatj + beta hatk` `(alpha, beta in R)`,`veca` lies in the plane of the vectors, ` vecb= hati + hatj` and `vecc= hati -hatj+4hatk`. If `veca` bisects the angle between `vecb and vecc`, then :

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Let A vector `veca =alpha hati + 2hatj + beta hatk` `(alpha, beta in R)`,`veca` lies in the plane of the vectors, ` vecb= hati + hatj` and `vecc= hati -hatj+4hatk`. If `veca` bisects the angle between `vecb and vecc`, then :

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