Posted by **dt** on Tuesday, November 4, 2008 at 11:22pm.

Let f(x)=[x^3-9x]

[] --- absolute value

a. does f'(x) exist?

b. does f'(3) exist?

c. does f'(-3) exist?

d. determine all extrema of f.

## Answer this Question

## Related Questions

- Calculus - find the absolute extrema if they exist as well as where they occur f...
- math calculus - Find the absolute extrema of the function on the closed interval...
- Math (easy question) - Given the function f(x) = 1/(sqrt x) a. Does f(x) exist ...
- calculus - find the value of the derivative (if it exist) at the indicated ...
- Calculus. Limits. Check my answers, please! :) - 4. lim (tanx)= x->pi/3 -(...
- calculus - Which of the following best describes the limit as x approaches 4 of ...
- calculus help please - hi what is lim as x reaches one of the function x/LN(x) ...
- Calculus - Find the absolute maximum value and the absolute minimum value, if ...
- Hard Calculus - f(x)= xsquared -2x for y= absolute value of f(x) does the ...
- physics - Two charges, qA and qB, are separated by a distance, d, and exert a ...

More Related Questions