Tolong jawabkan donk..

S₁₀ = (a x (1 - (1/2)¹⁰)) / (1 - 1/2)= 4.092
a x (1 - 1/1.024) = 4.092 x 1/2
a x (1.024 - 1)/1.024 = 2.046
a = 2.046 x 1.024/1.023
a = 2.048
Un = a x rⁿ⁻¹U3 = a x r²= 2.048 x (1/2)²= 2.048 x 1/4= 512