Question

verify a*b=b*a where a=2/3and b=-4/5

Answer 1

a*b = b*a

LHS :-

2/3*-4/5

= -8/15

RHS :-

-4/5*2/3

= -8/15

SINCE LHS=RHS

HENCE PROVED THAT a*b=b*a

Answer 2

Answer:

$a \times b = b \times a \\ \\ given \: a \: = \frac{2}{3} \\ \\ and \: b = \frac{ - 4}{5} \\ \\ = > \frac{2}{3} \times \frac{ - 4}{5} = \frac{ - 4}{5} \times \frac{2}{3} \\ \\ = > \frac{ - 8}{15} = \frac{ - 8}{15} \\ \\ hence \: verified$

hope this much helps uh ❣️