Find the positive root of x3-6x+4=0 by newton raphson method.
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Answered by
14
Answer:
The positive root is 0.73.
Step-by-step explanation:
Let, the function f(x) = .
We need to find the value of xn for which f(xn) = 0, by newton raphson method.
Lets take x=0.
.
f(0) = 4 and at x = 0, .
Hence, next value of x will be .
Now, f() = 0.2962 (approx 0).
So, lets take a further value of x that is x2.
f() = 0.2962 and .
Thus, x2 = .
f(0.73) = 0.008409 ≅ 0.
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