I have a trig equation with me(adsbygoogle = window.adsbygoogle || []).push({});

[tex] z=cos^2\theta+cos\theta+6[/tex]

i am supposed to find the maximum and minimum points of z using completing the square.

I have found [tex] 5\frac{3}{4} [/tex] as the minumum, but how do i go about finding the maximum?

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# Homework Help: Find the minum pts. in a trig equation

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