Question

pls answer this

34th a option...​

Answer 1

a7=4xa2

a12=2+(a4)3

do it by Ua self by solving both of them using any of the method!!

Answer 2

a+(7-1)d=4[a+d]

a+6d. =4a+4d

3a-2d. = 0.........(1)

12th term +2=3*4th term

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

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

2a -2d= 2............(2)

eliminate (1) &(2)

3a-2d=0

-2a-2d=2

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a. = -2

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a-d=1

-2-d=1

-d= 3

[ d =-3. ]