å 3 -9 3. For x = and y = in 4 8 (i) (x + y)- and x-1 + y- -1
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Mathematics includes the study of such topics as quantity, structure, space, and change. It has no generally accepted definition. Mathematicians seek and use patterns to formulate new conjectures; they resolve the truth or falsity of such by mathematical proof.
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= 57
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