Posted by **Lucy** on Monday, February 27, 2012 at 12:53am.

Using the chain rule, find the min and max points and their values of the composite function defined by:

z= x^2 + y^2, x=sin(2t), y=cos(t)

- cal3 -
**Steve**, Monday, February 27, 2012 at 12:10pm
z = x^2 + y^2

dz/dt = 2x dx/dt + 2y dy/dt

= 2sin(2t) * 2cos(2t) + 2cos(t) * (-sin(t))

= 4cos(4t) - sin(2t)

for dz/dt=0, check wolframalpha and enter

**solve 4cos(4t) - sin(2t) = 0**

- cal3 -
**pirocudo kid bengala**, Thursday, November 3, 2016 at 3:25pm
olha o lança de coco

BAFORO FICO LOCO

OLHA O LANÇA DE COCO

BAFORO FICOOOO LOCO

## Answer This Question

## Related Questions

- Please help for my test CALculus - using the chain rule find the min and max ...
- calculus - find max, min and saddle points of the give function f(x,y)=sin(x)+...
- Calculus - Find f'(x) if f(x)=sin^3(4x) A. 4cos^3(4x) B. 3sin^2(4x)cos(4x) C. ...
- math - can some one please help me with the following questions as i don't ...
- cal3 please help! - Use Lagrange multipliers to find the max/min values of the ...
- PreCalc - y =( (C-A)/2 ) sin( (X - (A - ( (C - A)/2 ) ) )( pi/(C-A) ) ) + (B...
- Math - Find the critical points and the interval on which the given function is ...
- Math - determine the values of a,b,c,and d for a sinusoidal equation in the form...
- math - Eliminate the parameter (What does that mean?) and write a rectangular ...
- Math - Calculus Question. - hey can someone explain to me the relationship ...

More Related Questions