The product of two no is -81/91 if one of the no is -9/7 find the other no

Asked by sakthicb26102007 | 10th Mar, 2020, 08:53: PM

Expert Answer:

Let the other number be x.
 
According to the condition, we have
begin mathsize 16px style fraction numerator negative 9 over denominator 7 end fraction cross times space straight x equals space fraction numerator negative 81 over denominator 91 end fraction
rightwards double arrow straight x space equals space fraction numerator negative 81 over denominator 91 end fraction cross times fraction numerator 7 over denominator negative 9 end fraction space equals space 9 over 13 end style
 

Answered by Yasmeen Khan | 11th Mar, 2020, 10:57: AM