## Sin3x Formula in terms of sinx [with Proof]

Sin3x formula in terms of sinx is as follows: 3sinx – 4sin3x. The formula can be expressed as sine 3x = 3 sine x – 4 sine cube x. In this post, we will learn how to prove sin3x formula along with some examples. This is very useful in the area of Trigonometry to solve … Read more