Evaluate the following : `|-(2)/(3)+(4)/(5)|`
`|(-2)/(3)times(-1)/(2)|`

Using appropriate properties find -(2)/(3)times(3)/(5)+(5)/(2)-(3)/(5)times(1)/(6)

Using appropriate properties find. (i) -(2)/(3)times(3)/(5)+(5)/(2)-(3)/(5)times(1)/(6) (ii) (2)/(5)times(-(3)/(7))-(1)/(6)times(3)/(2)+(1)/(14)times(2)/(5)

Evaluate each of the following products: (-1)xx(-2)xx(-3)xx(-4)xx(-5) (-3) xx(-6)xx(-9)xx(-12)

Find the sum of the following infinite series (1)/(2)((1)/(5))^(2)+(2)/(3)((1)/(5))^(3)+(3)/(4)((1)/(5))^(4)+...

Find the value of n in each of the following: (3/2)^4xx(3/2)^5=(3/2)^(2n)^(+1) (2/3)^(10)xx{(3/2)^2}^5=(2/3)^(2n)^(-2)