The equation sin2 u1cos2 u51 is true for all u. a. Use the given equation to prove that

Chapter 9, Problem 27

(choose chapter or problem)

The equation sin2 u1cos2 u51 is true for all u. a. Use the given equation to prove that tan2 u11 5 sec2 u. b. Is the equation in part a true for all u? Justify your answer. c. In the diagram,if OR 5 1 and RT 5 tan u,the length of what line segment is equal to sec u?

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