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| 1. |
If the points A(x,2)B(-3,-4)and C(7,-5) are collinear then find the value of x |
| Answer» By using the formula of area of triangle 1/2{(x1(y2-y3)+x2(y3-y1)+x3(y1-y2)}.Area of triangle=0{because points are collinear}.We get the value of x. | |