Question

Verify that (x x y) -1 = x-1 * y-1 when x = -2/3 and y = -3/5

Answer 1

Step-by-step explanation:

l.h.s

(x ×y)-1= (-2/3×-3/5) -1 = (2/5)-1 = 2-5/5= -3/5

r.h.s

x-1= (-2/3 ) -1 = -2-3/3= -5/3

y -1= (-3/5)-1 = -3-5/5= -8/5

multiply (-5/3)(-8/5)=8/3

so l.h.s not equals to r.h.s