Answer to Question #48117 in Geometry for Mr. X

Question #48117
A, B, C, D are four points taken on a line in that order. AB = a, BC = b, CD = c. P is a point outside this line. Measures of angles APB = BPC = CPD = θ. Prove that cos^2(θ) = (a + b)(b + c)/4ac
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Expert's answer
2014-10-23T09:18:03-0400
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Assignment Expert
24.10.14, 16:44

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Mr. X
23.10.14, 21:26

Ohh!! I didn't think of that Thanks!

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