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प्रश्न
If polar co-ordinates of a point are `(3/4, (3pi)/4)`, then its Cartesian co-ordinate are ______
विकल्प
`(3/(4sqrt(2)), -3/(4sqrt(2)))`
`(3/(4sqrt(2)), 3/(4sqrt(2)))`
`(-3/(4sqrt(2)), 3/(4sqrt(2)))`
`(-3/(4sqrt(2)), -3/(4sqrt(2)))`
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उत्तर
`(- 3/(4sqrt(2)), 3/(4sqrt(2)))`
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