Please help with this math question?!!?

0 ⤊

Please help with this math question?!!?

a. Write a function whose value for each number x is the sum of x and its reciprocal. Find the truning pointss of this function by graphing. (If you give me the equation, I'll find the turning points myself.)

b. For what positive number x is the sum of x and its reciprocal a minimum? Does this quantity have a maximum value? Explain why or why not.

c. For what positive number x is the sum of x and the square of its reciprocal a minimum? (If you don't recognize the number try cubing it.)

2007-03-13 10:35:58 · 2 answers · asked by Anonymous in Education & Reference ➔ Homework Help

2 answers

It's just asking you to write f(x) = x + 1/x. That should help you with the rest of the problem.

2007-03-15 06:05:15 · answer #1 · answered by ³√carthagebrujah 6 · 0⤊ 0⤋

there sure is a whole lot of x's in it

Did that help?

2007-03-13 17:38:57 · answer #2 · answered by Andrew B 3 · 0⤊ 1⤋