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Vector vec O A= hat i+2 hat j+2 hat k t...

Vector ` vec O A= hat i+2 hat j+2 hat k` turns through a right angle passing through the positive x-axis on the way. Show that the vector in its new position is `(4 hat i- hat j- hat k)/(sqrt(2))dot`

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The correct Answer is:
`(2sqrt(2)hat(i)-(1)/(sqrt(2))hat(j)-(1)/(sqrt(2))hat(k)`
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ARIHANT MATHS ENGLISH-PRODUCT OF VECTORS-Exercise (Subjective Type Questions)
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  12. Vector vec O A= hat i+2 hat j+2 hat k turns through a right angle ...

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  13. Let vec ua n d vec v be unit vectors such that vec uxx vec v+ vec u=...

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