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23 June, 13:37

Use the inequality 10cosx≥0 with a period [-2π,0] to answer the following questions. Part A: Which answer correctly explains the solution process of the inequality? Part B: What does the period represent in this problem? Select one answer for Part A, and one answer for Part B.

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  1. 23 June, 17:23
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    Answer: Since tan is a strictly increasing function you just need to solve the equation tan x = 1 for 0<=x<=2pi. X is pi/4 this resulting into the final answer:

    x E [pi/4, 2pi]
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