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Given veca=hati+2hatj+3hatk,vecb=-hati++...

Given `veca=hati+2hatj+3hatk,vecb=-hati++2hatj+hatk and vec c=3hati+hatj` find the angle of resultant with x-axis. Also finid a unit vector in the direction of the resultant of these vectors. Also find a unit vecotr `vecr` which is normal to both `veca and vecb` what is the inclination of `vecr and vec c`?

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