Question

Calculate two iterations of Newton's Method to approximate a zero of the function using the given...

Calculate two iterations of Newton's Method to approximate a zero of the function using the given initial guess. (Round your answers to three decimal places.)

45. f(x) = x5 − 5,    x1 = 1.4

n

xn

f(xn)

f '(xn)

f(xn)
f '(xn)
xn
f(xn)
f '(xn)
1
2

40. Find two positive numbers satisfying the given requirements.

The product is 234 and the sum is a minimum.

smaller value=

larger value=

30.Determine the open intervals on which the graph is concave upward or concave downward. (Enter your answers using interval notation. If an answer does not exist, enter DNE.)

y = 2x + 7/sinx ,    (−π, π)

concave upward:

concave downward:

4.Find the points on the graph of the function that are closest to the given point.

f(x) = x2 − 8,(0, −5)

(x,y)= ( , ) (Smaller X-value)

(x,y)= ( , ) (Larger X-value)

Homework Answers

Answer #1

45) and 40)

30)

concave upward:

concave downward:

4)

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