
Recall that a circle of radius 2 centered at the origin has equation

where the positive root gives the top half of the circle in the x-y plane. The definite integral corresponds to the area of the right half of this top half. Since the area of a circle with radius

is

, it follows that the area of a quarter-circle would be

.
You have

, so the definite integral is equal to

.
Another way to verify this is to actually compute the integral. Let

, so that

. Now

Recall the half-angle identity for cosine:

This means the integral is equivalent to
Answer:
22.99
Step-by-step explanation:
...........................
The Xtra detergent. Because it is $8.77 and all the rest are higher.
Eight x ten thousand plus four plus ten plus 5 times zero point zero one plus 2 times 1 Lol
The answer is 5 .
3 3/4 / 3/4 = 5
Hope this helps