Let the vectors veca and vecb be such that |veca| = 3 and |vecb| = sqrt2/3, then veca xx vecb is a unit vector, if the angle between veca and vecb is ______.

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Let the vectors veca and vecb be such that |veca| = 3 and |vecb| = sqrt2/3, then veca xx vecb is a unit vector, if the angle between veca and vecb is underline(pi/4) Explanation: |veca| = 3, |vecb| = sqrt2/3 |veca xx vecb| = 1 `|veca||vecb||sinthetahatn| = 1 |veca||vecb||sintheta| = 1 3 xx sqrt2/2 xx sintheta = 1 sintheta = 1/sqrt2 theta = pi/4 The correct option is pi/4`.

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