Question

Q3} Verify that : a) -1/2+[(-4/3)+3/7]and [(-1/2)+3/7]+(-4/3) are there same .
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Answer 1

Answer:

-1/2+[(-4/3+3/7]=[(-1/2)+3/7]+(-4/3)

-1/2+[(-28/21+9/21)] = [-7/14+6/14] +(-4/3)

-1/2+[-19/21] = [-1/14]+(-4/3)

-1/2-19/21 = -1/14-4/3

-21/42-38/42 = -3/42-56/42

-59/42 = -59/42