Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! 🙂 https://www.patreon.com/patrickjmt !! Identities for Sum and Differences of Sine and Cosine, Example 2. In this video, I show how we can find other values of sine and cosine (besides the commonly memorized values) using sum and difference identities. For more free math videos, visit http://PatrickJMT.com
This video explores ways to solve word problems by translating the given information into algebraic expressions and equations. Download the Activity Sheet at http://www.mathcounts.org/sites/default/files/u5328/Sept2018MinisHandout.pdf. Download the Solutions at /sites/default/files/u5328/Solutions%20September%202018%20Mini.pdf. Video by Art of Problem Solving’s Richard Rusczyk, a MATHCOUNTS alum. Visit Art of Problem Solving for many more educational resources.