Determine the relationship between log-antilog method.

(a) lnVx×lnVy = ln(Vx+Vy)

(b) lnVx / lnVy = ln(Vx-Vy)

(c) lnVx -lnVy = ln(Vx/Vy)

(d) lnVx+ lnVy = ln(Vx×Vy)

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My question is taken from Multiplier and Divider topic in portion Operational Amplifier Applications of Linear Integrated Circuits