decide whether following sequence is an A. P..., if so find the 20th term of the progression. -12,-5,2,9,16,23,30,.....
Answers
Answered by
5
yes,it is an Ap
here common difference (d)=7
a+(n-1)*d
-12+(20-1)*7
=>-12+133
=>121 ans.
here common difference (d)=7
a+(n-1)*d
-12+(20-1)*7
=>-12+133
=>121 ans.
Similar questions