Sin & # 178; a + cos & # 178; a = 1. What other formulas like this?

Sin & # 178; a + cos & # 178; a = 1. What other formulas like this?

Let me tell you something. Whether it's trigonometric or algebraic, as long as the equation containing "1" appears, it can be used inversely. For example, with three as the base, the logarithm of three is equal to one. Conversely, it can also be used
For example, cos2a = 1-2 * (Sina) ^ 2
1=cos2A+2*(sinA)^2.
You can find it in books, even if you haven't learned it. It's good for your study

Elden Ring Premiere

RELATED INFORMATIONS