1.

If A, B, C are the sets of all values of x, for which x^(2)-5x-14 is positive, -6x^(2)+2x-3 is negative and 4x-5x^(2)+2 is negative respectively, then A cap B cap C=

Answer»

(-2, 7)
`phi`
`((2-sqrt(14))/5, (2+sqrt(14))/5)`
R

Answer :C


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