Your lunch bill is $19.75. A 5% sales tax will be added, and you want to give a tip of about 20% of $19.75. Estimate how much yo
2 answers:
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Solution :
Given
Let the initial approximation is
So by Newton's method, we get
are identical up to eight decimal places.
The approximate real root is x ≈ 1.32471795
∴ x = 1.32471795