The diagram shows part of the curve y = 3x x 3/2 and the lines y

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The diagram shows part of the curve y = 3x – x3/2 and the lines y = 3x and 2y = 27 – 3x. The curve and the line y = 3x meet the x-axis at O and the curve and the line 2y = 27 – 3x meet the x-axis at A.


i. Find ʃ(3x – x3/2) dx.

ii. Find the coordinates of A.

iii. Verify that the coordinates of B are (3, 9).

iv. Find the area of the shaded region.

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