
Because the trigonometric functions are periodic, if a basic trigonometric equation has one solution, it has _____ (several/infinitely many) solutions.

To fill: The blank in the statement “Because the trigonometric functions are periodic, if a basic trigonometric equation has one solution, it has __________ (several/infinitely many) solutions”.
Answer to Problem 1E
The complete statement is “Because the trigonometric functions are periodic, if a basic trigonometric equation has one solution, it has
Explanation of Solution
An equation that contains trigonometric functions is called a trigonometric equation. A basic trigonometric equation is an equation of the form
If a trigonometric equation has a solution, then it has infinitely many solutions.
Since the trigonometric functions are periodic, to find all solutions, first find the solutions in one period and then add integer multiples of the period.
Thus, the complete statement is “Because the trigonometric functions are periodic, if a basic trigonometric equation has one solution, it has
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