Lesson: Evaluating Trigonometric Ratios given the Value of Another Ratio Mathematics • First Year of Secondary School

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In this lesson, we will learn how to find the value of a trigonometric function from a given value of another trigonometric function.

Students will be able to

determine the values of sine, cosine, and tangent in the different quadrants of the unit circle and do likewise with the reciprocal trigonometric functions,
determine the values of different trigonometric functions, in a specified range, from a given value of another trigonometric function using the different quadrants of the unit circle, including sine, cosine, tangent, secant, cosecant, and cotangent.