If 1-2+3-4.......is an ap then find S41?
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3
these are actually 2 ap such that
(1+3+5+7.....+41)-(2+4+6......+40)
you have to simply solve both of them and subtract
SORRY I DONT GIVE FULL ANSWERS AS I BELEIVE THAT A STUDENT SHOULD ANSWER HIS/HER DOUBGS HIM/HERSELF
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Answer:
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