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### Integral Calculus

```
Date: 09/18/97 at 10:40:35
From: Jane
Subject: Integral calculus

How do you integrate the following function:
square root of (1 - x squared) from 0-1?
```

```
Date: 09/18/97 at 11:06:53
From: Doctor Rob
Subject: Re: Integral calculus

Use the substitution x = sin(u).

-Doctor Rob,  The Math Forum
Check out our web site!  http://mathforum.org/dr.math/
```

```
Date: 09/18/97 at 13:14:48
From: Doctor Ceeks
Subject: Re: integral calculus

Hi,

Another way to do the integral you ask for is to realize
that:

1. The integral asks for the area of a region
between a curve and the x-axis

2. The particular region in this problem is one quarter of
a circle of radius 1.

(so the answer is pi/4)

-Doctor Ceeks,  The Math Forum
Check out our web site!  http://mathforum.org/dr.math/
```
Associated Topics:
High School Calculus

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