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For which values of k, does the pair of ...

For which values of k, does the pair of linear equations `kx+y=k^(2) and x+ky=1` have (1) no solution ? (2) infinitely many solutions? (3) a unique solution ?

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The correct Answer is:
`(1) k= -1 (2) k=1 (3) k ne +1`
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