Question

For the following values of a,b and c, verify that (a×b)×c=a×(b×c).
a=-3/5, b=-1/7, c=-1/2

Answer 1

given a= -3/5 , b= -1/7 , c= -1/2

to prove (a*b)*c= a*(b*c)

sub a , b , c in above eq

(-3/5 * -1/7) * -1/2 = -3/5 * (-1/7 * -1/2)

(3/35) * -1/2 = -3/5* (1/14)

-3/70 = -3/70

L.h.s = R.h.s

hence proved