Use the chain rule to find dwdt , where w = sin(8x) ⋅ cos(4y) , x = t² , and y = t³ .
a) dwdt = 16t² cos(4t³)
b) dwdt = 16t³ cos(8t²)
c) dwdt = 16t² cos(8t³)
d) dwdt = 16t³ cos(4t²)