1+2+3+4+5+6.........+107
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Aur dum hai toh issi pehale wala question solve karke dekhao
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Answered by
2
see
1 + 2 + 3 ..., + 107
107 + 106 + 105 ..... +1
adding these two equations...
= 108×107
sum of these 1 +2..107
= 108×107/2 =54×107 = 5778
Answered by
1
Answer:
sn= n÷2[T1+ TN]
s107=107÷2[1+107]
=107×108÷2
=107×54
=5778
1+2+3+4+5+6............+107 =5778
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