Trigonometry (Continued) Introduction

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An equation containing the trigonometrical functions of an unknown quantity is termed as a trigonometrical equation, which holds for some values (and not for all values) of the quantities involved.

The value, that satisfies the equation are called the roots.

The main problem of interest in connection with trigonometric equations is to find the values of unknown quantity, which satisfy the equation.

The value of the unknown angle satisfying the given equation is called the solution of the given trigonometrical equation.

Since, all trigonometric equations are periodic, trigonometric equations will have infinitely many solutions.