Please answer any questions.

DETAILS HARMATHAP12 14.2.005. MY NOTES ASK YOUR TEACHER If f(x, y) = (x3 + 8y2)3, find of and of of ax of ay 2 DETAILS HARMATHAP12 14.2.011. MY NOTES ASK YOUR TEACHER If Q(s, t) = 25 - 9t 52 + 12 , find of and aQ as at aQ as aQ at 3 DETAILS HARMATHAP12 14.2.019. MY NOTES ASK YOUR TEACHER Find the slope of the tangent in the positive x-direction to the surface z = 2x - 2xy at the point (2, 1, 12). DETAILS HARMATHAP12 14.2.035. MY NOTES ASK YOUR TEACHER If f( x, y) = x3y + 8xy4, find the following. 22 2x 2 (( x , y ) 1 ( -1, 1)