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Find the value of K for which the points (7, -2), (5, 1), (3, k) are collinear.

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Find the value of K for which the points (7, -2), (5, 1), (3, k) are collinear.

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Given A(7, -2), B(5, 1) and C(3, k) are collinear

To find: Find the value of K

So, The given points are collinear, if are (∆ABC) = 0

= 7 – 7k +5k+10-9 = 0

= -2k + 8 = 0

Hence, K = 4

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