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December 18, 2014

December 18, 2014

Posted by **missy** on Wednesday, April 18, 2012 at 4:42pm.

1. cos(arccos4/5)

- algebra-trig help asap -
**Steve**, Wednesday, April 18, 2012 at 4:44pmby definition,

arccos(4/5) is the angle whose cosine is 4/5

so, cos(that angle) is . . . 4/5!

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