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Find the solutions set of i) x^(2)+x-12 le 0 ii) x^(2)-2x+1 lt 0 iii) 2-3x-2x^(2) ge 0 over R by both algebric and graphical methods. iv) 15x^(2)+4x-4 le 0

Answer»


Answer :i) `{X in R: -4 le x le 3}` ii) Solution does not exist III) `-2 le x le (1)/(2)` iv) `(-2)/(3) lt x lt (2)/(3)`


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