Question

principle solution of sinx=-1?
​

Answer 1

Answer:

Solutions for Trigonometric Equations. Let us begin with a basic equation, sin x = 0. The principal solution for this case will be x = 0, π, 2π as these values satisfy the given equation lying in the interval [0, 2π]. But, we know that if sin x = 0, then x = 0, π, 2π, π, -2π, -6π, etc.