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If the points (a, 0), (0, b) and (1, 1) are collinear then which of the following is true |
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Answer» USE AREA of TRIANGLE FORM by these THREE points is equal to zero area of t triangle=1/2 {a (b-1)+0+1 (0-b)} 0=ab-a-b a+b=ab divide both side by ab a/ab+b/ab=ab/ab 1/b+1/a=1 hence 1/a+1/b=1 |
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