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Mathematics 11 Online
OpenStudy (anonymous):

Please help me out with this! cos[arctan(-5/12)] Here are the answer choices: A. 5/12 B. 5/13 C. 12/13 Please! I've been waiting for an answer, and I'm kinda new at this. Thanks!

OpenStudy (anonymous):

put them all in your calculator, you will get C

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