12. [-/2 Points] DETAILS LARCALC11 13.5.010. Consider the following. W = Xy COS Z, X = t, y = t*, z = arccost (a) Find dw/dt by using the appropriate Chain Rule. dw dt (b) Find dw/dt by converting w to a function of t before differentiating. dw E dt Need Help? Read It Watch It 13. [-/2 Points] DETAILS LARCALC11 13.5.012. Consider the following. w = xy2 + x2z+ yz2, x = th, y = 9t, z= 9 (a) Find dw/dt using the appropriate Chain Rule. dw = dt (b) Find dw/dt by converting w to a function of t before differentiating. dw dt14. [-/4 Points] DETAILS LARCALC11 13.5.016. Find Ow/Os and Ow/Ot using the appropriate Chain Rule. Function Values W = y' - 3x2y S = -4, t = 8 x = es, y = et Ow E as ow = at Evaluate each partial derivative at the given values of s and t. ow E Ow E at15. [-14 Points] DETAILS LARCALC11 13.5.017. Find 6w/as and (aw/at using the appropriate Chain Rule. Function Values w=sin(4X+5y) 5:0 t= X = s + t, y = s t ' 2