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Triangle ABC is shown. BCD = 30° D is a point on side AC such that BD = DA = AB. B A Prove that AD = DC. Give reasons for each step of your proof. You must show all your working. [5] D 30 С
What are the values of a, b, and c in the quadratic equation 0 = x2 – 3x - 2? a = 1, b = 3, c = 2 a=, b = -3,c=-2 a = 1, b = 3, c= 2 a = 1.0= -3, c = 2