Question

Help me please

Difficult(for me) indices question :P
Show that...

Answer 1

\[ \huge\frac{pq ^{-1} - p ^{-1} q }{ p ^{2} q ^{-2}- p ^{-2} q ^{2} }= \frac{ pq }{ p ^{2}+q ^{2} }\]

Answer 2

we supposed to show this is true

Answer 3

negative exponents just represent fractions in the sense that x^-1 = 1/x and x^-2 = 1/(x^2).

Answer 4

@jim_thompson5910 @UnkleRhaukus @whpalmer4
Help me please