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The sum of the series (2)/(3) + (8)/(9) + (26)/(27) + (80)/(81) + … to n terms is

The sum of the series (2)/(3)+(8)/(9)+(26)/(27)+(80)/(81)+ to n terms is n-(1)/(2)(3^(-n)-1)(b)n-(1)/(2)(1-3^(-n))(c)n+(1)/(2)(3^(n)-1)(d)n-(1)/(2)(3^(n)-1)

The HCF of (2)/(3),(8)/(9),(10)/(27),(32)/(81) is :

The HCF of (2)/(3),(8)/(9),(10)/(27),(32)/(81) is:

Sum up the series (2)/(3) + (5)/(9) + (8)/(27)+(11)/(81) + ..... to n terms and hence find the sum to infinity . Sum up to infinity given that x lt numerically .

The sum of the series 2/3+8/9+(26)/(27)+(80)/(81)+ to n terms is (a) n-1/2(3^(-n)-1) (b) n-1/2(1-3^(-n)) (c) n+1/2(3^n-1) (d) n-1/2(3^n-1)

Find the sum of the series (27)/(8) + (9)/(4) + (3)/(2) + … oo

The sum of first n terms of the series (4)/(3),(10)/(9),(28)/(27),(82)/(81),(244)/(243),... is

The HCF of (2)/(3),(8)/(9),(64)/(81) and (10)/(27) is...