Precalculus : Solving Trigonometric Equations and Inequalities

Study concepts, example questions & explanations for Precalculus

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Example Questions

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Example Question #1 : Solve Trigonometric Equations And Inequalities In Quadratic Form

Solve  when 

Possible Answers:

There are no solutions.

Correct answer:

There are no solutions.

Explanation:

Given that, for any input, , we know that, and so the equation  can have no solutions.

Example Question #21 : Trigonometric Identities

Solve  when 

Possible Answers:

There are no solutions.

Correct answer:

Explanation:

By adding one to both sides of the original equation, we get , and by taking the square root of both sides of this, we get  From there, we get that, on the given interval, the only solutions are  and .

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