Functions #4

Algebra Level 4

If f ( x ) = x 3 − 3 x + 1 f(x) = x^3 - 3x + 1 , then determine the number of real roots of f ( f ( x ) ) = 0 f(f(x)) = 0 .

1 3 9 5 7

Divyam Bapna by Divyam bapna , 22, India

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1 solution

Divyam Bapna
May 29, 2015

2 Helpful 0 Interesting 0 Brilliant 0 Confused

Moderator note:

Can you elaborate on it?

Is there a method other than graphing for this?

Anand Iyer - 6 years ago

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I was able to solve it in this manner. Actually, this question appeared in a test. So I don't know what is the actual method.

Divyam bapna - 6 years ago

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