Question

if a=-1/7, b=3/7, prove that ab = ba​

Answer 1

Answer:

Step-by-step explanation:

a=-1/7, b=3/7

LHS=ab

       =-(1/7)*(3/7)

       =-3/49

RHS=ba

       =(3/7)(-1/7)

       =-3/49

LHS=RHS

so ab=ba

Answer 2

$a = \frac{1}{7} \\ b = \frac{3}{7}t \\ ab = \frac{1}{7} \times \frac{3}{7} \\ \\ ab = \frac{3}{49} \\ \\ ba = \frac{3}{7} \times \frac{1}{7} \\ \\ ba = \frac{3}{49} \\ \\ \\ therefore \: \: ab = ba$

I hope that it will help you....