Sure, here is the revised description with all the links and additional text removed: Learn how to use the double angle identities to solve trigonometric equations. When we have equations with a ...
Solve the equation \(5\cos (6x - 20)^\circ + 3 = 7.25\), for \(0 \le x \le 180\).
In this video I will show you how to solve a trigonometric equation using the double angle for cosine. When applying the double angle of cosine we are given a quadratic equation where we will now need ...