A vector vec(a) has components 2p and 1 with respect to a rectangular cartesian system. This system is rotated

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Q 2200691518.     A vector vec(a) has components 2p and 1 with respect to a

rectangular cartesian system. This system is rotated

through a certain angle about the origin in the clockwise

sense. If with respect to new system, vec(a) has components

p + 1 and 1, then
A

p=0

B

p=1 or p=-1/3

C

p=-1 or p=1/3

D

p=1 or p= -1

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(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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