Question

The 2nd term of an ap is nine times the 5th term and the sum of the first eight terms is 56. find the first term and the common difference.

Answer 1

I think this is the answer. ..

Answer 2

Answer:

First mark me brainlist and follow me

Step-by-step explanation:

a2=9a5

a+d=9(a+4d)

a+d=9a+36d

8a+35d______(I)

S8=8/2(2a+(8-1)d)

56=4(2a+7d)_______(II)

eq(II)-eq(I)

8a-+35d=0

-8a+28d=56

_____________

7d=-56

d=-8

2a+7d=14

2a-56=14

2a=70

a=35