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If vecA =0.4hati+0.3hatj+chatk be a un...

If `vecA =0.4hati+0.3hatj+chatk` be a unit vector , then what is the value of c ?

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`|vecA|=sqrt((0.4)^2+(0.3)^2+c^2)=1`
or, `0.16+0.09+c^2=1 or, c =sqrt(3)/2`
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