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705-805 (Hard)|   Algebra|      
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Bunuel
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If a, b, and c are the solutions of the equation x^3 – 3x^2 – 4x + 5 = 02 Mar 2020, 05:47
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

75% (hard)

Question Stats:

45% (01:28) correct 55% (01:57) wrong based on 196 sessions

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If a, b, and c are the solutions of the equation \(x^3 – 3x^2 – 4x + 5 = 0\), what is the value of \(\frac{1}{ab} + \frac{1}{bc} + \frac{1}{ca}\)?

A. -4/5
B. -3/5
C. 3/5
D. 4/5
E. 1


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B
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Schools: IIM (A) ISB '24
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If a, b, and c are the solutions of the equation x^3 – 3x^2 – 4x + 5 = 02 Mar 2020, 06:26
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Bunuel
If a, b, and c are the solutions of the equation \(x^3 – 3x^2 – 4x + 5 = 0\), what is the value of \(\frac{1}{ab} + \frac{1}{bc} + \frac{1}{ca}\)?

A. -4/5
B. -3/5
C. 3/5
D. 4/5
E. 1


Are You Up For the Challenge: 700 Level Questions
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The solution of the question is as mentioned below. The video solution explains the steps well.

Answer: Option B


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If a, b, and c are the solutions of the equation x^3 – 3x^2 – 4x + 5 = 28 Mar 2025, 15:12
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