Is cosine even or odd?
Understand the Problem
The question is asking whether the cosine function is classified as even or odd. We determine this by evaluating the properties of the cosine function concerning the input values and their negatives.
Answer
cosine is an even function
The final answer is cosine is an even function
Answer for screen readers
The final answer is cosine is an even function
More Information
Cosine is considered an even function because for all values of theta, cos(-θ) equals cos(θ). This symmetry is a characteristic property of even functions.
Tips
A common mistake is confusing the properties of sine and cosine. Remember that sine is an odd function and cosine is an even function.
Sources
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