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Tool Kit, MERGE PROBLEMS WHAT CAN YOU SEE? 1-144. Some say that "Seeing is believing." We say "The ability to visualize a concept often makes it easier to remember and understand." You have seen that the sine and cosine of an angle can be represented by vertical and horizontal line segments on the unit circle. You may be interested to know that you can see the tangent, cotangent, secant, cosecant, and even the Pythagorean Identities there as well. Study the following diagram, obtain a resource page, and answer the questions below to find and label all of the trig functions. 1. Use APDB to complete the problems below. (Your answers will be in the form of line segments.) a. What is sin 0 ? b. What is cos 0 ? 2. Explain why ZA = 0. 3. Explain why APDB ~ AABP. 4. Using AABP and realizing that ZA = 0 tells us sin A = sin 0 : a. What is sin A ? P D b. C What is csc A (which equals csc 0)? C. What is tan A (which equals tan 0 )? d. What is cot A (which equals cot @ )