Question

Can someone help me with this...plz give only detailed explanation...​

Answer 1

Answer:

7

Step-by-step explanation:

since, a(n) = a +(n-1)d

therefore, According to question;

a(4) = -1+(4-1)d =-1+3d

& A(4) = -8+(4-1)d = -8+3d

now if d is same for both A.P's then,

d = {a(4)+1}/3

& also, d = {A(4)+8}/3

thus, equating both we get,

a(4)-A(4) = 7.

Hence, the difference between there 4th terms is 7.

Answer 2

Answer:

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