If for an A.P. the 1st term is 2 and the 10th term is 48 then what is the sum first ten numbers.
Answers
Answered by
13
Answer:
250
Step-by-step explanation:
a=2
a10= 48= l
s10=n/2 (a+l)
s10=10/2 (2+48)
s10=5×50
s10=250
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