use angles 1. Let f (x) be any one of the trigonometric functions that we've seen. A. Which trig function do you choose? B. What "kind of thing" do we typically have as the input, x (angle or ratio)? C. What "kind of thing" do we typically get as the output, f (x) (angle or ratio)? 2. For the function you thought of in question 1, picture what the function f-l (x) would be. A. What "kind of thing" do we typically have as the input, x (angle or ratio)? B. What "kind of thing" do we typically get as the output, ƒ-' (x) (angle or ratio)? 3. Now evaluate your f (x) at x = 0 . What is f (0) ? 4. In question 3, what is the input, x (angle or ratio)? 5. In question 3, what is the output, f (x) (angle or ratio)? 6. Now take your output from question 3 and use that as the input for f-' (x) , what number should result from this?

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A: given that  sec⁡(S)=−3      Use the definition of secant to find the known sides of the unit…

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Q: 13. Reduce each of the following to a function of an acute angle: a. sin 150° b. cos 210°

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A: Solution

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.