Assertion : The angle between the two vectors `(hati + hatj) and (hatj + hatk)` is `(pi)/(3)` radian

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Assertion : The angle between the two vectors `(hati + hatj) and (hatj + hatk)` is `(pi)/(3)` radian. Reason : Angle between two vectors `vecA and vecB` is given by `theta = cos^(-1)((vecA*vecB)/( AB))`
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