The diagram depicts the curve $y = 2 + e^{-2x}$. It cuts the $y$-axis at $A$, and $B$ lies on the curve with $x$-coordinate $1$. The shaded part is enclosed by the curve and the line segment $AB$.
(main)[5]
Find the exact area enclosed by the shaded region.
(c)[5]
Find the exact area enclosed by the shaded region.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Integrate to produce the form $ax+be^{-2x}$” …