Ise Theorem 13.9 to find the directional derivative of the function at P in the direction of the nit vector u = cos el + sin of. 7. [-/1 Points] DETAILS LARCALC11 13.6.030. (x, v) - sin(2x + yl. PG. =). . . - S MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find the gradient of the function at the given point. Function Point Need Help? Pessa Wash (3, 4) "(3. 4) - Find the maximum value of the directions 2. [-/1 Points] DETAILS LARCALC11 13.6.008. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Need Help? Reed Watch Find the directional derivative of the function at P in the direct (x, y) = x - y'. P(8, S), v - 2(+ )) B. [-/1 Points] DETAILS LARCALC11 13.6.042.MI. Need Help? Road MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find a normal vector to the level curve (x, y) = cat P. 3. [-/1 Points] DETAILS LARCALC11 13.6.013. - - P(5, 5) MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use Theorem 13.9 to find the directional derivative of the function at A in the direction of PC. Need Help? Red INK Master (x. V) = e 7 sin(x). P10, 0). 0(5. 1) Need Help? Ross Worth 9. [-/1 Points] DETAILS LARCALC11 13.6.043. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER the following 4. [-/1 Points] DETAILS LARCALC11 13.6.017. (x, Y) = 5x - - 6. P(2, 14) MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER a) Find the gradient of the function at P. M2, 14) - Find the gradient of the function at the given point. 2- In(a" - yl - 3. (2, 3) b) Find a unit normal vector to the level curve(x, y) = c at P. V2(2, 3) = c) Find the tangent line to the level curve ((x, y) = cat P. Need Help? : Path Submit Answer d) Sketch the level curve, the unit normal vector, and the tangent line in the xy-plane. 5. [-/1 Points] DETAILS LARCALC11 13.6.022. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER -13 -10 Use the gradient to find the directional derivative of the function at P in the direction of v. -15 O O Need Help? Read " Voteha 6. [-/1 Points] DETAILS LARCALC11 13.6.027. -13 MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER - 15 Use the gradient to find the directional derivative of the function at P in the direction of PQ. O g(x, y, z) = aye , P(5, 15, 0). Q(0, 0, 0)