Question: In Exercises 1 and 2, use a graphing utility to determine which of the six trigonometric functions is equal to the expression. Verify your answer

In Exercises 1 and 2, use a graphing utility to determine which of the six trigonometric functions is equal to the expression. Verify your answer algebraically.
1. tan x + 1 / sec x + csc x
2. 1 / sin x (1 / cos x - cos x)

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