Suku ke-n dari barisan geometri adalah4-n. Jumlah tak hingga deret tersebutadalah ….
Un = 4⁻ⁿ
a= 4⁻¹ = 1/4
r = u2/a = 4⁻². 4¹ = 4⁻¹ = 1/4
S∞ = a/ ( 1- r)
S∞ = (1/4)/ ( 1 – 1/4)
S∞ = (1/4) / ( 3/4)
S∞ = (1/4) . ( 4/3)
S∞ = 1/3
Suku ke-n dari barisan geometri adalah4-n. Jumlah tak hingga deret tersebutadalah ….
Un = 4⁻ⁿ
a= 4⁻¹ = 1/4
r = u2/a = 4⁻². 4¹ = 4⁻¹ = 1/4
S∞ = a/ ( 1- r)
S∞ = (1/4)/ ( 1 – 1/4)
S∞ = (1/4) / ( 3/4)
S∞ = (1/4) . ( 4/3)
S∞ = 1/3