Given $f ( x ) = 1 - e ^ { x }$ over the interval [-1, 2], find: (a) the signed area, (b) the absolute area, between the graph of f and the x-axis from x = -1 to x = 2.

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The Answer of Given $f ( x ) = 1 - e ^ { x }$ over the interval [-1, 2], find: (a) the signed area, (b) the absolute area, between the graph of f and the x-axis from x = -1 to x = 2.

Given f(x)=1−exf ( x ) = 1 - e ^ { x }f(x)=1−ex

Given $f ( x ) = 1 - e ^ { x }$