G·tan2x + 1-Google Sear × / Course Home ments-2017 Chrome-Do Homework- Mohammed

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G·tan2x + 1-Google Sear × / Course Home ments-2017 Chrome-Do Homework- Mohammed Shahittu O open Secure l https://www.mathxl.com/Student/PlayerHomework.aspx?he Math 125.04 ab* Homework: 5.5 Score: 0 of 1 pt 5.5.15 3 of 13 me Tests Find all solutions of the equation cosx =-2 Select the correct choice below and, if necessary, fill in the answer box to complete OA. ntents (Simplify y0ur answer Type an exact answer, using as needed. Type an exp expression. Use a comma to separate answers as needed.) ccess B. There is no solution. ccess Library ptions Click to select and enter your answer(s) and then click Check Answer All parts showing

Explanation / Answer

Ans: a) This equation has infinite solutions as it's a periodic function but the original solution is in the period from

0 to 2 pi.

So, x = (2 pi/3), (4pi/3) .

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