B
Check that the list of numbers defined by the
following nth term is an AP or not. Also give reason.
(i) tn = 5+6n
(ii) tn = 3n-2
Answers
Answered by
6
Step-by-step explanation:
1)tn=5+6n
t(1)=5+6(1)
=11
t(2)=5+6(2)
=5+12
=17
t(3)=5+6(3)
=5+18
=23
Ap=11,17,23,...
d=6
Hence, it is an Ap
2)tn=3n-2
t(1)=3(1)-2
=1
t(2)=3(2)-2
=6-2
=4
t(3)=3(3)-2
=9-2
=7
Ap=1,4,7,..
d=3
Hence,it is an Ap
Similar questions