YouTube on MSNOpinion

Algebra 2 - How to solve a trigonometric equation using the double angle formula

Here's the revised YouTube video description without the links: Learn how to use the double angle identities to solve ...
YouTube on MSN

Tutorial - Given the cosine of an angle determine the double angle for sine, cosine and tangent

Learn how to evaluate the double angle of sine. The value of the sine of double a given angle can be obtained given the value ...