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(a) The gradient function of a curve is given by #dy/dx# =#2x^2-5#. Find the equation of the curve, given that y=3 when x=2. (b) The velocity,v m/s of a moving particle after t seconds is given by #v=2t^3+t^2-1#. Find the distance covered by the
particle in the interval #1 le t ge3#