Question

Write the multiplicative inverse of
a) -13/19​

Answer 1

`- (19)/(13)`

Explanation:

`the \: multiplicative \: inverse \: of \: \\ - (13)/(19) = - (19)/(13)`

Product of a number and its multiplicative inverse should be equal to 1.

So,

`\bigg ( - (13)/(19) \bigg) \bigg ( - (19)/(13) \bigg)`

`= (13)/(19)* (19)/(13)`

`=1`