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A Complete Guide to the Discriminant of Quadratic – mathsathome.com
Using the quadratic formula, solve following equation for x: abx2 + (b2 - ac)x - bc = - Maths - Quadratic Equations - 1009445 | Meritnation.com
7. Applications of Trigonometry Sine Formula Cosine Formula a 2 = b 2 + c 2 - 2bc cos A b 2 = a 2 + c 2 - 2ac cos B c 2 = a 2 + b 2 - 2ab cos C A B C c. - ppt download
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Prove that if (a^2+b^2)(c^2+d^2)=(ac+bd)^2, then ad = bc.
If A^x=b^y=c^z and b^2=AC, then what is the value of y? - Quora
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If 1/a2+1/b2+1/c2=1/ab+1/bc+1/AC, then how do you prove that a=b=c? - Quora