If the roots of the equation (a2+b2)x2-2(ac+bd)x+(c2+d2)=0 are equal prove that a/b=c/d - YouTube
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Prove that the points (a, b), (c, d) and (a-c, b-d) are collinear, if ad = bc. - YouTube
SOLVED: 3 Let @,b,€,d e R: Suppose that the 2 x 2 square matrix A= [a ] is orthogonal: Explain why a2 + b2 +d2 = 1 and ac + bd =
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SOLVED: Complete the following proof. AB is diameter of circle 0. Given: Ac ad BB are tangents Prove: Ac BD sED reasom AB is diameter of circle O. Ac and BB are