If the nth term of an ap I'd 7n-2 then find the sum of first two term
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Answer:
Step-by-step explanation:
Put value of n=1,2,3....
7(1)-2=5
7(2)-2=12
7(3)-2=19
AP's=5,12,19
a=5 d=12-5=7
Sn=n/2{2a+(n-1)d
S2=2/2{2(5)+(2-1)7
=10+7
Sum of first two terms are 17
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