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प्रश्न
Find the value of x for which the points (x, –1), (2, 1) and (4, 5) are collinear.
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उत्तर
If points A (x, –1), B (2, 1), and C (4, 5) are collinear, then
Slope of AB = Slope of BC
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| Column C1 | Column C2 |
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