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OpenStudy (anonymous):
im have trouble with equations
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OpenStudy (anonymous):
\[\sum_{i=1}^{15} 3i-2\]
OpenStudy (hunus):
What do you need help with?
OpenStudy (anonymous):
the equation in the first comment
OpenStudy (amistre64):
split it up \[\sum3i-\sum2\] \[3\sum i-2\sum\]
OpenStudy (anonymous):
330
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OpenStudy (amistre64):
3(8)(15)-30 24(15)-30 (240+100+20)-30 240+90 = 330, yay!!
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