Identity types

Example 1

This is first in a series of integrals requiring a trig. identity to simplify it.

Evaluate the following:

  1. \displaystyle\int \dfrac{\sin 2x}{\cos x} dx

Example 2

Try integrating this series of integrals which uses a very basic trig identity. Do you know what it is?

Evaluate the following:

  1. \int (\tan^{2}x+1)
  2. \int (1+ \tan^{2}5\theta)d\theta
  3. \int(3 + 3\tan^{2} 2x) dx

Example 3

Try integrating this series of integrals which uses a very basic trig identity. Do you know what it is?

Evaluate the following:

  1. \int \sin x \cos x \ dx
  2. \displaystyle\int 5 \cos \dfrac{3x}{2} \  \sin \dfrac{3x}{2} \ dx




2018-08-09T07:37:06+00:00
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