6. Integration: Inverse Trigonometric Forms

by M. Bourne

Using our knowledge of the derivatives of inverse trigonometric identities that we learned earlier and by reversing those differentiation processes, we can obtain the following integrals:

math expression

Example 1: Integrate: math expression.

Example 2: Integrate: math expression

Example 3: Find the area bounded by the curve math expression and the lines x = 0, y = 0 and x = 2.

Caution:

There are a number of integrals of forms which look very similar to the above but are actually different, e.g.

math expression

We will develop methods to solve these in a later section. (See Integration by Trigonometric Substitution.)

Exercises

Integrate each of the given functions:

1. math expression

2. math expression

3. math expression

4. Find the area bounded by the curve math expression and the lines x = 0, y = 0 and x = 1.

This is not the answer ... it is a corruption of a .gif file containing the answer!!:

math expression

[This happened in MS Word during a period of great instability - the computer's and mine...^_^]

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