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OpenStudy (anonymous):
Why is 2cos(pi)= -2?
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OpenStudy (amistre64):
cos pi = -1
OpenStudy (anonymous):
2cos(pi) = -2 cos (pi) = -2/2 cos (pi) = -1
OpenStudy (anonymous):
Why do I get positive 1 when I put it in the calculator?
OpenStudy (amistre64):
becasue your hitting the wrong button most likely
OpenStudy (amistre64):
|dw:1335108504861:dw|
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OpenStudy (amistre64):
|dw:1335108541412:dw|
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