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If θ be an acute angle such thatSolve the quadratic equation (x)--5x)+6 0.4 5em Now construct another tria |
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Answer» (x*x - 5x)(x*x - 5x) - 7(x*x - 5x) + 6 = 0 (x*x - 5x)(x*x - 5x) - 6(x*x - 5x) - (x*x - 5x) + 6 = 0 (x*x - 5x)(x*x - 5x - 6) - 1(x*x - 5x - 6) = 0 (x*x - 5x - 1)(x*x - 5x - 6) = 0 x*x - 5x - 6 = 0 (x-6)(x+1) = 0 x = -1,6 x*x - 5x - 1 = 0 x = (5+√(25+4))/2 or (5-√(25+4))/2 = (5+√29)/2 or (5-√29)/2 |
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