Question

please help me in this question ​

Answer 1

Answer:

consider:L.H.Sq

(x X y)^-1

=19/17*-8/31

=-152/527

now

R.H.S=x^-1 X y^-1

=(19/17)^-1*(-8/31)^-1

=17/19*31/-8

=527/-152

by invertendo

=-152/527

=L.H.S