Question

Q.1) If the points A (-2,1),B(a,b) anac(4,-1) are collinear and a-b=1, find the values of a &b.

Q.2) ABC is an isoceles∆, in which AB=AC, circumscribed about a circle.show that BC is bisected at the point of contact.

Answer 1

a=3/2 and b=1/2
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