26. If an A.P. 7a, = 11a, then a18 =
1)-1
3) 0
4) 7
2) 1
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Answered by
5
It will be zero .....
.....
rishi1590:
can you say how
becz they hav zero common diffrence and frst term is also zero
got it thanks
u hv to explain it though
okkk srry i wll nxt time
Answered by
8
Answer:
0
Step-by-step explanation:
sum=a+(n-1)d
a7= ( a+6 d)
a11= ( a+10 d)
7(a7)=7a+42d--------1
11(a11)=11a+110d--------2
given 1=2
7a-11a=110d-42d
-4a=68d
a=-17d-------3
a18=a+17d
a18=0
thanks for step by step explanation
wc
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