fouzimedfouni
New Member
- Joined
- Nov 7, 2016
- Messages
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7.1 What can you conclude about the number of real roots for each of the following equations
a) 3x + 10 = 0
b) 3x2 + 10 =0
c) 3x3+10 = 0
d) x + cos x = 1 sin x
7.9 Determine the real root for the equation given in problem 7.1 c using solver
3x3 + 10 = 10
5.7 Graph the function
f(x) = 2x3 – 13x – 9
for x = [3,-3] in increments of 0.1. Plot the function by using a line plot. You can see
from the plot that f(0) = 0 near x = -2.1, -0.8, and 2.8. Use these three guesses and the
Solver to find more accurate solutions for f(x) = 0
5.8 Use Solver to minimize the objective function
f(x) = (x1 + 2x2 – 7)2 + (2x1 + x2 – 5)2
for constraints –10 ≤ x1, x2 ≤ 10. What are the values of x1 and x2 when f(x) is at its
minimum?
a) 3x + 10 = 0
b) 3x2 + 10 =0
c) 3x3+10 = 0
d) x + cos x = 1 sin x
7.9 Determine the real root for the equation given in problem 7.1 c using solver
3x3 + 10 = 10
5.7 Graph the function
f(x) = 2x3 – 13x – 9
for x = [3,-3] in increments of 0.1. Plot the function by using a line plot. You can see
from the plot that f(0) = 0 near x = -2.1, -0.8, and 2.8. Use these three guesses and the
Solver to find more accurate solutions for f(x) = 0
5.8 Use Solver to minimize the objective function
f(x) = (x1 + 2x2 – 7)2 + (2x1 + x2 – 5)2
for constraints –10 ≤ x1, x2 ≤ 10. What are the values of x1 and x2 when f(x) is at its
minimum?
