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OpenStudy (anonymous):
cos x = -1/sqrt2 and sin x = -1/sqrt2 find x?
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OpenStudy (experimentx):
180+45
OpenStudy (anonymous):
it lies in 3 rd quadrant...
OpenStudy (anonymous):
becoz sin and cos are - ve
OpenStudy (cwrw238):
|dw:1343306374442:dw|
OpenStudy (cwrw238):
yes 225 degrees
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