1.

A vector bara has components a_1,a_2,a_3 in the right handed rectangular Cartesian system OXYZ. The co-ordinate system is rotated about the x-axis through an angle pi/4 in the anticlock wise direction. The components of bara in the new system are

Answer»

`a_1,(a_2+a_3)((a_3-a_2)/SQRT2)`
`a_1((a_2+a_3)/sqrt2),((a_3-a_2)/sqrt2)`
`a_1,((a_2+a_3)/sqrt2),a_3-a_2`
NONE of these

Answer :B


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