Question

trigonometric formulas

Answer 1

sin
$sin { }^{2} \alpha + cos {}^{2} \alpha = 1 \\ sin { }^{2} \alpha = 1 - \cos {}^{2} \alpha \\ cos {}^{2} \alpha = 1 - sin {}^{2} \alpha$

Answer 2

Here are all formulas related to trigonometry.. Hope i helped you..