find the number of terms in the following arithmetic series 1+2+3+------=1275
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Answer:
Step-by-step explanation:
given
1 + 2 + 3 + 4 + ................... = 1275
Clearly
1 , 2 , 3 ......... so on are in AP
With a = 1 and d = 1
WKT
Therefore
There are 50 terms in the following AP
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