In an arithmetic progression an+5=35 and an+1= 23 then common difference
Answers
Answered by
9
Step-by-step explanation:
an+5=35
a+(n+5-1)d=35
a+nd+4d=35
an+1=23
a+(n+1-1)d=23
a+nd=23
substrate eq 1 and 2
a+nd+4d-a-nd=35-23
4d=12
d=3
please mark me as brainliest
Similar questions