Question

Solve this.Show necessary calculations.Lazy answer will be deleted

Answer 1

Hopefully my solutions Will satisfy you.

Answer 2

ln{(a + b)/2 } = 1/2{ lna + lnb }

ln{ (a + b)/2 } = lna½ + lnb½

ln{ (a + b)/2} = ln(ab)½

(a + b)/2 = (ab)½

(a + b) = 2(ab)½

take square both sides ,

(a + b)² = 4ab

a² + b² + 2ab = 4ab

a² + b² = 2ab

(a² + b² - 2ab ) = 0

(a - b)² = 0

(a - b) = 0

a = b