Q. 2 C5.0( 1 Vote )

# Using determinant

Given: – (3, – 2), (8, 8) and (5, 2) are three points

Tip: – For Three points to be collinear, the area of triangle formed by these points will be zero

Now, we know that,

vertices of a triangle are (x1,y1), (x2,y2) and (x3,y3), then the area of the triangle is given by: Now,

Substituting given value in above formula R.H.S Expanding along R1   = 0

= LHS

Since, Area of triangle is zero

Hence, points are collinear.

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