stiiutorul
stiiutorul
01-11-2015
Mathematics
contestada
7+9+11...+2013-5-7-9-...2011
Respuesta :
Neuron
Neuron
01-11-2015
If you would like to calculate
7 + 9 + 11 + ... + 2011 + 2013 - 5 - 7 - 9 - 11 - ... - 2011
, you can do this using the following steps:
7 + 9 + 11 + ... + 2011 + 2013 - 5 - 7 - 9 - 11 - ... - 2011 =
(7 + 9 + 11 + ... + 2011) + 2013 - 5 + (- 7 - 9 - 11 - ... - 2011)
=
2013 - 5
=
2008
The correct result is
2008
.
Answer Link
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