Before going to learn the sin formula, let us recall a few things about the sin function. In trigonometry, the sine function or sin function is a periodic function. The sine function can also be defined as the ratio of the length of the perpendicular to that of the length of the hypotenuse in a right-angled triangle. Sin is a periodic function with a period of 2π, and the domain of the function is (−∞, ∞) and the range is [−1,1]. Sin formula is used to find sides of a triangle.
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