Question

Principle solution of rignometri funation eq line is

Answer 1

Answer:

Equations involving trigonometric functions of a variable is known as Trigonometric Equations. Example: cos 2 x + 5 cos x – 7 = 0 , sin 5x + 3 sin 2 x = 6 , etc. The solutions of these equations for a trigonometric function in variable x, where x lies in between 0≤x≤2π is called as principal solution.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Well, the equations which involve trigonometric functions like sin, cos, tan, cot, sec etc. are called trigonometric equations. In this article, we will look at the different solutions of trigonometric equations in detail.

We already know that the values of \( \sin {x} \) and \( \cos {x} \) repeat after an interval of 2π. Also, the values of \( \tan {x} \) repeat after an interval of π. If the equation involves a variable 0 ≤ x < 2π, then the solutions are called principal solutions. A general solution is one which involves the integer ‘n’ and gives all solutions of a trigonometric equation. Also, the character ‘Z’ is used to denote the set of integers.

trigonometric equations