TESTfunda - CAT Question of the Day 18-Sep-12

By Rajendar Bommidi - September 17, 2012

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18-Sep-12

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CAT Question of the Day

Let p, q and r are the roots of the cubic equation;

x³ – 3px² + 3q²x – r³ = 0,

Which of the following statement is definitely true?

OPTIONS

	1)	p + q + r = 0
	2)	p = q = r
	3)	p² + q² = r²
	4)	More than one of the above

discuss | yesterday's solution | more questions

Tip of the Day

In Paragraph Summary questions, options that cover the key points of the paragraph, but change the tone of the paragraph, subtly or otherwise, are to be avoided. Look for options that address the essence of the paragraph.

more tips

Last year's Question of the day (17-Sep-11)

Let α, β be the roots of the equation x² – x + 1 = 0

Let S_n = αⁿ + βⁿ where n is a natural number.

Which of the following holds true?

OPTIONS

	1)	\|S_n\| ≤ 1
	2)	S_n is an integer for all n.
	3)	S_n is not always real.
	4)	None of these

discuss

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