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A vector a has the components 2p and 1 w...

A vector a has the components 2p and 1 w.r.t. a rectangular cartesian system. This system is rotated through a certain angle about the origin in the counter clockwise sence. If with respect to a new system, a has components (p+1) and 1, then

A

p = 0

B

`p = 1" or "-(1)/(3)`

C

`p=-1" or "(1)/(3)`

D

`p=1" or "-1`

Text Solution

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The correct Answer is:
B
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