VectorHard
Question
Vector 
has components A1, A2, A3 along the three axes. If the co-ordinates system is rotated by 90o about z-axis, then the new components along the axes are -
has components A1, A2, A3 along the three axes. If the co-ordinates system is rotated by 90o about z-axis, then the new components along the axes are -Options
A.A1, - A2, A3
B.-A1, - A2, A3
C.A2, -A1, A3
D.-A2, -A1, A3
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