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OpenStudy (anonymous):
If the sin 30° is 1 over 2, then the cos ____° = _____. 60° ; 1 over 2 30° ; square root 2 over 2 60° ; square root 3 over 2 30° ; 1 I really don't get this stuff..
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OpenStudy (anonymous):
thank you! :)
OpenStudy (ankitshaw):
cos 60 = 1/2
OpenStudy (anonymous):
Ankitshaw is correct. punch those angles ex. cos 60 then hit enter and you'll see out of all those which one is correct. make sure your calculator is in degree mode.
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