Respuesta :
The product of a fraction and 7 is greater than 7, if fraction i a/b then (a/b)*7>7
The denominator 7 means (a/7), so we can rewrite (a/b)*7>7 as
(a/7)*7>7, from this inequality we get
a>7,
so the numerator is greater than 7
The denominator 7 means (a/7), so we can rewrite (a/b)*7>7 as
(a/7)*7>7, from this inequality we get
a>7,
so the numerator is greater than 7
The product in the numerator is -20 + 10i.
The product in the denominator is 50.