Using Identities to Find Exact Trig Values
These videos are from the Trigonometry Series. You can visit the page for these videos at this link: Using Identities to Find Exact Trig Values
Using Identities to Find Exact Trig Values Exercise 1
Using the Sum and Difference Identities to find the exact value of cosine
Using Identities to Find Exact Trig Values Exercise 2
Using the Sum Identity for Trig to find the exact value of sine
Using Identities to Find Exact Trig Values Exercise 3
Using a Double Angle Identity to find the exact value of an expression with sine and cosine
Using Identities to Find Exact Trig Values Exercise 4
Using the Half-Angle Identities to find the exact values of sine, cosine, and tangent