Question

find tn for the A.P. 3,8,13,18,....... .

Answer 1

tn=a+(n-1)d
a=3
d=5
an=3+5n-5
tn=5n-2

for example if u want to find 1st term, 2nd,...
take like this ok
=>if n=1 then,
t1=5(1)-2
t1=3
=>if n=2 then,
t2=5(2)-2
t2=8
continue till infinity

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hope this helps u
thank u

Answer 2

heya friends ......

Here is ur answer ..
==================
a' first term =3..

d=t2-t1

d=8-3=5.

so.....tn=a+(n-1)d...

tn=3+(n-1)5

tn=3+5n-5.

tn=5n-2...Ans ..

Hope it helps you ..
@Rajukumar ☺☺☺