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Mathematics 12 Online
OpenStudy (anonymous):

cos105 cos75 - sin105 sin75

OpenStudy (anonymous):

this is simple. just calculate it as is, on the graphing calculator, and hit equal. thats the answer

OpenStudy (anonymous):

i have to do it out by hand

OpenStudy (anonymous):

you would need a table to do it by hand

OpenStudy (anonymous):

oh! right! the z table right? well, you cant do it by hand, just wanted to let you know that. but you dont know how to use the z chart?

OpenStudy (anonymous):

what about sin 75 cos 75

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