The sum of first 6th term of ap is 42 .The ratio of its 10th term to its 30th term ratio is 1:3 find the 1st tern
Answers
Answered by
1
I don't know broooooooooo
Answered by
0
Answer:
Step-by-step explanation:
According to the question
a+5d=-10
a+9d=-26
When subtracted
4d=-16
d=-4
now given a+5d=-10
Substituting the value of d
a+-20=10
a=30
an=a+n-1 d
an=30+15-1×4
an=82
..........#QUIET EASILY DONE...............
Similar questions