JEE MATHEMATICS MCQ: THEORY OF EQUATION

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Analyzing +4 | -1

The range of values of '

{a}

' so that the equation

x^3-3 x+a=0

has three real and distinct roots is

View answer and explanation

Correct option: D

(-2,2)

Option D,

(-2,2)

, is correct because the condition for three distinct real roots is that

f(1)f(-1) < 0

, which leads to

-2 < a < 2

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