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If a unit vector veca makes angles (pi)/...

If a unit vector `veca` makes angles `(pi)/(3)` with `hati,(pi)/(4)` with `hatj` and an acute angle `theta` with `hatk` then find `theta` and hence , the components of `veca`.

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The correct Answer is:
`(pi)/(3);(1)/(2),(1)/(sqrt(2)),(1)/(2)`
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