-1 Given a function f(x) = 3e is plotted in Figure Q7 Figure Q7 f(x) 3...

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-1 Given a function f(x) = 3e is plotted in Figure Q7 Figure Q7 f(x) 3 (a) Find the area of the shaded region in unit (b) Given that the volume if a function y is completely rotated about the x-axis is expressed as below V = dx a Calculate the volume if the shaded area calculated in (a) is rotated 360 about the x-axis. -1 Given a function f(x) = 3e is plotted in Figure Q7 Figure Q7 f(x) 3 (a) Find the area of the shaded region in unit (b) Given that the volume if a function y is completely rotated about the x-axis is expressed as below V = dx a Calculate the volume if the shaded area calculated in (a) is rotated 360 about the x-axis.