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# P(a cos, b sin) is any point on the ellipse + = 1 Now if this ellipse is rotated anticlockwise by 90º and P reaches then co-ordinate of are -

- (a sin, b cos)
- (b sin, a cos)
- (–b sin, a cos)
- None of these

## The correct answer is: (–b sin, a cos)

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