Question 1. 14.4.1 ) HW Score: 14.17%, 2.13 of 15 points Homework: Sec... 0 Points- 0 of1 dw For the functions w = 8x2 -6y2, x = cos t. and y = sin t, express a as a function of t, both by using the chain rule and by expressing w in terms off and differentiating w 31'! directly with respect tot. Then evaluate a at t= T. Question 2, 14.4.5 HW Score: 14.17%, 2.13 of 15 points = Homework: Sec... O Save Part 1 of 2 O Points: 0 of 1 dw For the given functions, (a) express - as a function of t, both by using the chain rule and by expressing w in terms of t and differentiating directly with respect to t. dw Then (b) evaluate dt at the given value of t. W = 2y ex - Inz, x = In (t2 + 1) , y=tan - 't, z=et; t= 1E Homework: Sec... Question 3, 14.4.6 HW Score: 14.17%, 2.13 of 15 points Part 1 of 2 O Points: 0 of 1 Save Next Question dw Use the functions below to (a) express dt as a function of t, both by using the Chain Rule and by expressing w in terms of t and differentiating directly with respect to t. Then (b) evaluate dw at the given value of t. W=z - sin xy, x = 3t, y = In (t -8), z=et-9, t= 9