Question

9) Verify that (a+b)+c.=a+(b+c) by taking

(1) a = -2 , b = -2/3 , c = -3/4

(2) a = -12, b = -9/11, c = 7/-12

give the solution not steps
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Answer 1

Answer:

(1) -2+-2/3-3/4 = -2-2/3-3/4

(2)-12-9/11+7/-12 = -12-9/11+7/12

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