Thread: IB Maths HL (Integration) Help Please???

A rectangle is drawn so that its lower vertices are on the x-axis and its upper vertices are on the curve y = sin x, where 0 ≤ x ≤ π.


• Write down an expression for the area of the rectangle.
• Find the maximum area of the rectangle...

Can someone help me out with this??

Originally Posted by Matricaria

A rectangle is drawn so that its lower vertices are on the x-axis and its upper vertices are on the curve y = sin x, where 0 ≤ x ≤ π.


• Write down an expression for the area of the rectangle.
• Find the maximum area of the rectangle...

Can someone help me out with this??

let's go halfway ... literally

consider the graph of from to

height =

base =



determine the value of that maximizes the area of this rectangle, find the area, then double the result.