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Given P(at^(2), 2at) , Q ((a)/(t^(2)) , ...

Given P`(at^(2), 2at) , Q ((a)/(t^(2)) , (-2a)/(t) )` , and S(a, 0 ) , show that `(1)/(SP) + (1)/(SQ)` is independent of t .

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The correct Answer is:
`(1)/(a)`
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