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OpenStudy (anonymous):
Find the sum of the summation of 2 i minus 9, from i equals 3 to 10. 52 26 13 32
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OpenStudy (anonymous):
10\[\sum_{i=3}^{10}2i-9\]
OpenStudy (anonymous):
I wish I knew this :(
OpenStudy (anonymous):
I know how to solve it the hard way but I always screw up since it takes for-ever
OpenStudy (anonymous):
You basically repeat 2i-9 ten times
OpenStudy (anonymous):
My first quess would be 52?
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