Question

Show that the progression 13,8,3,-2,-7 is an A.P. Find its first term and the common difference

Answer 1

a=13

a^2 = 8

first term = a= 13

common difference = (a^2 - a ) = (8 -13) = -5

Answer 2

Answer:

Step-by-step explanation:

D=A2-A

13-8

5

D= A3-A2

8-3

5

D= A4-A3

3-(-2)

3+2

5

D=A5-A4

-2-(-7)

-2+7

5

I hope you satisfied with my answer