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Algebra

Cool goIITian

Joined:	24 Jun 2007
Post:	61

1 Jan 2008 22:05:24 IST

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243

quadratic 4

None

Let a, b, c be the sides of a triangle.No two of them are equal and z is an element of R. If the roots of the equation

X^2 +2[a + b + c]x + 3 z [ab +bc +ca] = 0 are real, then:

a] z <4/3 b] z > 5/3 c]z is an element of [-1/3,5/3] d] z is an element of [4/3,5/3]. pls give detail solution

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Chintan Zalani

Cool goIITian

Joined: 24 Jun 2007

Posts: 61

3 Jan 2008 11:11:05 IST

Like 0 people liked this

hey cannot anybody give even an hint to me..

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