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A(1/(sqrt(2)),1/(sqrt(2))) is a point on...

`A(1/(sqrt(2)),1/(sqrt(2)))` is a point on the circle `x^2+y^2=1` and `B` is another point on the circle such that are length `A B=pi/2` units. Then, the coordinates of `B` can be (a) `(1/(sqrt(2)),-1/sqrt(2))` (b) `(-1/(sqrt(2)),1/sqrt(2))` (c) `(-1/(sqrt(2)),-1/(sqrt(2)))` (d) none of these

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CENGAGE ENGLISH-CONIC SECTIONS-All Questions
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