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Select the correct option from the given alternatives: If polar co-ordinates of a point are `(2,frac{pi}{4})` then its cartesian co ordinates are…. A) `(2,sqrt2)` B) `(sqrt2,2)` C) `(2,2)` D) `(sqrt2,sqrt2)`

A

`(2,sqrt2)`

B

`(sqrt2,2)`

C

`(2,2)`

D

`(sqrt2,sqrt2)`

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