Answers

2015-07-05T19:06:45+08:00
If the sequence is limited to those terms, the sum is 40.
But if it goes indefinitely, S= a₁/(1-r) = -2/4 = -1/2 :)
                                        
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2015-07-05T21:14:56+08:00
40 sabi ng pinaka matalinong bagay sa mundo ang calculator
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