Sharp EL-W516T - Page 49

49
<Example 2>
Operation Display
1
1
- x
2
1
y =
- x
2
1
y =
O 1
dx
The fan shaped curve at left is given by the equation
Find the area of the fan shape with radius 1 and central
angle 90 .
- x
2
1
1
dx
0
Integration calculation
dx
x
(This example is for EL-W516T only.)
0
dx
x