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January 26, 2015

January 26, 2015

Posted by **Lucy** on Saturday, April 19, 2008 at 3:38pm.

Is the answer sqrt of 2/2?

Thanks

- Algebra II -
**Anonymous**, Saturday, April 19, 2008 at 8:01pmcos(315) is the same as cos(45)

cos(45)=sqrt(2)/2

sqrt(2) is a transcendental number and has no exact value.

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