a=7
b=9
ab=?
ab is the multiplication of a & b
there fore the value of ab=7*9=63
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We suspect that 'A' is not equal to 7 9, but that (7, 9) arethe coordinates of 'A'. Same for 'B'.If that's true, then the two points are 5 units apart.
5 [3-4-5 triangle]
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7b = 63 Divide both sides by 7:- b = 9
A = 1, B = 9