February 26, 2017

Homework Help: algebra 2

Posted by jeff on Sunday, May 16, 2010 at 9:14am.

I am taking an online class, and cant understand why when I calculate ona ti84 plus an answer I get decimal answer and my teachers answer is sq root, is there something I am not doing on my calculator? How do I convert.

Example, teachers answer to the following was
sin 315deg = -sin 45deg = -sqrt2/2
I got a decimal answer.

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