zolowski zolowski

08-09-2017
Mathematics

contestada

Find the limit of cosx
x→5π/3

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coolstick coolstick

08-09-2017

Since a circle is 2pi, we can add or subtract by 2pi to get the same answer - 5pi/3-2pi=pi/3, and cos(pi/3)=1/2 (by memorization). Since cos(x) is a function (for every x value, there is 1 y value) with no breaks in it etc., your answer is 1/2

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