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Exercise 8. Prove that the following is not an identity by finding a counterexample Verify that it is a counterexample. a. tant sect+1 sect-1

Exercise 8. Prove that the following is not an identity by finding a counterexample Verify that it is a counterexample. a. tant sect+1 sect-1 c. csc 2x = tant secx+cscx 2 sin x-2 cos 2

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