" (i) "(5)/(7)

Multiplicative inverse of (7)/(5) is - (-5)/(7)

(5+5+5)/(7+7+7)-(5+5)/(7+7)+(5)/(7)=?(1)/(7)(b)(3)/(7)(c)(5)/(7)(d)(13)/(14)

(5)/(7)+(-12)/(5)=-(12)/(5)+(5)/(7)

The mean of (5)/(7) and (7)/(5) is

((5)/(7))^(2)-:((5)/(7))^(3x+1)=((5)/(7))^(4)

Find the sum of each of the following infinite geometric series, if it exists : (4)/(7) - (5)/(7^(2)) + (4)/(7^(3)) - (5)/(7^(4)) + (4)/(7^(5)) - (5)/(7^(6)) +…oo

In (5)/(7)xy^(2)z^(3) , write the coefficient of : (5)/(7)

(2/3)^(-5)x\ (5/7)^(-5) is equal to (2/3x5/7)^(-10) (b) (2/3x5/7)^(-5) (c) (2/3x5/7)^(25) (d) (2/3x5/7)^(-25)