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The no. of roots of ( equation in image) in [0,1] are ? Image attached

The no. of roots of ( equation in image) in [0,1] are ? 
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Grade:12

1 Answers

Jitender Singh IIT Delhi
askIITians Faculty 158 Points
9 years ago
Ans:
Hello Student,
Please find answer to your question below,


f(x) = x^{3}-3x+1
f(0) = (0)^{3}-3.(0)+1
f(0) = 1
f(1) = (1)^{3}-3(1)+1
f(1) = 1
So there is an atleast one root lie between 0 and 1.
x^3-3x+1=0
x = .3473, 1.53209, -1.879

So there is only one root .3473 between 0 and 1.

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