5. Nadia was asked to show that the sine of an angle and the cosine of its complement are equal. To do this, she drew the diagram below and found sin(57°) and cos(33°). M 15 N 57 Which expression below represents both sin(57°) and cos (33°)? A. В. С. D. Е. F. 6. Given: sin(18m – 12) = cos(7m + 2), find the value of m. %3D m3=

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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.