A Given
AP
is
1, 7, 13, 19,
then t18 = ?
Answers
Answered by
1
Answer:
103
Step-by-step explanation:
Here,
a=1
d=7-1=6
We know that,
tn=a+(n-1)d
Hence,
t18=1+(17*6)
=1+102
=103
Answered by
1
Answer:
103
Step-by-step explanation:
here a=1
t2=7
t3=13
common difference=t3-t2 and t2-t1
13-7 and 7-1
6and6
common difference=6
now,
t 18 =a +(n-1)×d
= 1+(18-1)×6
=1+17×6
=1 +102
=103
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