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If `(a, 0), (0, b)` and `(1, 1)` are collinear, what is `(a+b-ab)` equal to ?A. 2B. 1C. 0D. `-1` |
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Answer» Correct Answer - C Since, `(a, 0), (0, b)` and `(1, 1)` are collinear. `:. |(a,0,1),(0,b,1),(1,1,1)|=0` `implies a(b-1)+1(0-b)=0` `implies ab-a-b=0` `implies ab-a-b=0` `implies a+b-ab=0` |
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