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प्रश्न
If `veca=xhati+2hatj-zhatk and vecb=3hati-yhatj+hatk` are two equal vectors ,then write the value of x+y+z
उत्तर
Given `veca=xhati+2hatj-zhatk and vecb=3hati-yhatj+hatk` are two equal vectors
`therefore xhati+2hatj-zhatk=3hati-yhatj+hatk`
x=3,y=-2,z=-1
x+y+z=3+(-2)+(-1)=0
Therefore, the value of x + y + z is 0.
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