Compare the value with the result

Question

Solve the following problem:

For the system of Fig.

a. Determine AG using Eq. (1), and compare the value with the result obtained using Eq. (2).

b. Find AGT using Eq. (3), and compare the value to the result obtained using Eq. (4).

and      A_G = A²_v(R_i/R_L)                   Eq. 1

so       A_G = -A_vA_i                           Eq. 2

or       A_Gr = A²_vr(R_g+R_i)/R_L)           Eq. 3

and      A_Gr = -A_vrA_ir                       Eq. 4