Question

The sum of the first three
terms of an Arithmetic
Progression (A.P.) is 90 and
the product of the first and
third term is 875. Find the first
term and the common
difference.
*​

Answer 1

Answer:

answer for the given problem is given

Answer 2

Answer:

1st term = 30

common difference = 5

Step-by-step explanation:

a-d+a+a+d=90

3a=90

a=90/3

a=30

Now,

(a-d) (a+d) = 875

a^2-d^2 = 875

(30)^2-d^2= 875

900 - d^2=875

-d^2= 875-900

d^2=25

d=5..........ans.....