Question

If anyone is tailented on maths they can solve it plzz help me with solution​

Answer 1

Hope it helps and your day will full of happiness

Answer 2

Explanation:

b).
`((-7)/(11))^(-8)* [((-7)/(11))^(-7)/ ((-7)/(11))^(-8)]^4`

=
`((-7)/(11))^(-8)* [((-7)/(11))^(-7)* ((-7)/(11))^(8)]^4` [Since,
`(1)/(a^(-1))=a`]

=
`((-7)/(11))^(-8)* [((-7)/(11))^(8-7)]^4`

=
`((-7)/(11))^(-8+4)`

=
`((-7)/(11))^(-4)`

=
`(-(11)/(7))^4`

=
`(14641)/(2401)`

c).
`(5^(-1)-10^(-1))^(-1)+(3^(-1)-5^(-1))^(-1)`

=
`((1)/(5)-(1)/(10))^(-1)+((1)/(3)-(1)/(5))^(-1)`

=
`((2)/(10)-(1)/(10))^(-1)+((5)/(15)-(3)/(15))^(-1)`

=
`((1)/(10))^(-1)+((2)/(15))^(-1)`

= 10 +
`(15)/(2)`

= 10 + 7.5

= 17.5