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Limits And Derivatives
Let y = (5x3 +3x -1) (x-1)differentiating both sides w.r.t. x, we get =(5x3 +3x -1) (1-0)+(x-1)(5x2 +3 -0) = 5x3 +3x -1+15x3 +3x -3 = 20x3 -15x2 + 6x -4