Find the trigonometric ratio for each angle by using the unit circle a) cos 150 degrees b) tan 315 degrees c) sin 630 degrees d) sec(-480 degrees)

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Q: Find the exact values of the six trigonometric ratios of the angle 0 in the triangle.

A: sin(θ)    = opposite side ÷ hypotenuse    = 24/25

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Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.