RLG210Y1 Lecture : Oct 19 Notes

y = 8t + 9 y = 8x2 - 9 y = 8x2 + 9 y = 8x + 9

Let W(s, t) = F(u(s, t), v(s, t), where F, u, and v are differentiable, and the following applies. u(-9,-6) =-3 us(-9,-6)--1 ut(-9,-6)--5 v(-9,-6) = 9 vs(-9,-6) = 4 vt(-9,-6) = 7 Ful-3, 9) F-3, 9)-7 Find Ws(-9, -6) and Wt-9, -6) Ws(-9,-6) We(-9,-6) Need Help? Talk to a Tutor

Find the indicated partial derivatives. f(x, y) = ln(x + ); fx(9, -9) fx(9, -9) =