Question: Q2. a) Find the interval for which the curve 10 y= x* - 12x3 + 24x2 +7x +5 i. Faces upward Hi. Faces downward ili.

Q2. a) Find the interval for which the curve 10 y= x* - 12x3 + 24x2 +7x +5 i. Faces upward Hi. Faces downward ili. Points of inflection. b) Find the point on the straight line 4x-3y+7=0 that is closest to the origin

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