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OpenStudy (vera_ewing):
Sigma notation
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OpenStudy (vera_ewing):
OpenStudy (vera_ewing):
@zepdrix help please i think it's A
OpenStudy (solomonzelman):
yes, definitely not C or D:)
OpenStudy (solomonzelman):
I will check
OpenStudy (solomonzelman):
no, incorrect
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OpenStudy (vera_ewing):
-135 is correct?
OpenStudy (solomonzelman):
yes, but you guessed it, didn't you?
OpenStudy (vera_ewing):
Wolfram aplha
OpenStudy (solomonzelman):
maybe we can learn how to do it, because wolfram won't help you during a non-online test/exam.
OpenStudy (vera_ewing):
Okay, next post.
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OpenStudy (solomonzelman):
sure
OpenStudy (solomonzelman):
as long as learning exists
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