Question

how find the 4th term from the end of an A.p= 2,58,------ 35​

Answer 1

Answer:

23

Step-by-step explanation:

Answer:

The 4th term from the end of the A.P. is 23.

Step-by-step explanation:

Given : A.P 2 , 5 , 8 ................ , 35

To find : The 4th term from the end of the A.P ?

Solution :

In the given arithmetic series,

First term a=2

Common difference d=3

Last term l=35

Applying last term formula,

l=a+(n-1)dl=a+(n−1)d

35=2+(n-1)335=2+(n−1)3

35=2+3n-335=2+3n−3

35=3n-135=3n−1

3n=363n=36

n=12n=12

Number of term are 12.

From the end 4th term of an A.P is 8th term,

So, The 8th term is a8=a+7d

a 8=a+7d

Therefore, The 4th term from the end of the A.P. is 23.

Answer 2

$l - (n - 1)d \\ \\ \\ \\ \\ here \: l = 35 \\ n = 4 \\ d = 56 \\ and \: answer \: is \: - 133$