Question

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Answer 1

Answer:

4) a. a+b=b+a

b. a*(b*c)=(a*b)*c

c) a*b=b*a

Answer 2

Answer:

Step-by-step explanation:

2. RHS   (3/7 x 4/9)x7/12

= 3x4x7/7x9x12

=1/9

LHS

3/7x(4/9x7/12)

= 3x4x7/7x9x12

=1/9

therefore, LHS=RHS