Question

7th term of a p is 4times its 2nd term n 12th term is 2 more than 3 times of its 4th term find ap​

Answer 1

Answer:

Step-by-step explanation:

a+6d=(a+d)2

a+6d=2a+2d

4d=a

a+11d=(a+3d)3+2

a+11d=3a+9d+2

2d=2a+2

Divide by 2 both side

d=a+1

From two eqn

4(a+1)=a

3a+4=0

a=-4/3

Then d is equal to

-1/3

A P is -4/3, -5/3,-6/3........and so on