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Preliminary SAT (PSAT) Practice Test

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What is the tangent function defined as?
Correct Answer:
Opposite/adjacent
Explanation:
The tangent function is defined as the ratio of the length of the side opposite an angle to the length of the side adjacent to that angle in a right triangle. This definition aligns with the concept of trigonometric functions, where the angle under consideration has a corresponding opposite side and adjacent side. In terms of sine and cosine, the tangent function can also be expressed as the sine of the angle divided by the cosine of the angle. However, the fundamental definition of tangent focuses on the lengths of these two sides, making the option that states opposite over adjacent correct.

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