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Mathematics 8 Online
OpenStudy (anonymous):

find the exact value of cos for an angle in standard position whose terminal side contains the point (-5,6)

OpenStudy (precal):

|dw:1386033299282:dw|

OpenStudy (precal):

cosine is adj/hyp so adj is 6 because it is opposite the angle now use \[a^2+b^2=c^2\] to figure out your hypotenuse

OpenStudy (precal):

|dw:1386033386317:dw| since it is in the second quadrant the value is negative since only sine and csc are positive

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