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September 24, 2014

September 24, 2014

Posted by **Alex** on Wednesday, October 10, 2012 at 1:24am.

(2cosx+3cosx-2)/(2cosx-1)as x tends to pi/3.

- Math -
**Steve**, Wednesday, October 10, 2012 at 10:30amif you let y=cosx, then you have

(2u-1)(u+2)/(2u-1)

so, except when u=1/2, you just have (u+2)

so, the limit is cos pi/3 + 2 = 5/2

there is a removable hole at x=pi/3

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