In this video, I will show you how to evaluate an angle in degrees using the sum formula of cosine. We will need to use the ...

After cracking the 'sum of cubes' puzzle for 42, mathematicians discover a new solution for 3. What do you do after solving the answer to life, the universe, and everything? If you're mathematicians ...

In this video I will show you how to evaluate the tangent of -75 degrees. We will do this by breaking up negative 75 degrees ...