![]() (a) z= 2x y x= sint y= 3t dz dt = 2cost 3 (b) z= xsiny x= et y= ˇt dz dt = et sin(ˇt) + ˇet cos(ˇt) Check your answer by expressing zas a function of tand then di erentiating. PRACTICE PROBLEMS: 1.Find dz dt by using the Chain Rule. Be able to compare your answer with the direct method of computing the partial derivatives. Also in this site, Step by Step Calculator to Find Derivatives Using Chain Rule The chain rule of differentiation of functions in calculus is presented along with several examples and detailed solutions and comments. ![]() Chain Rule of Differentiation in Calculus. ![]()
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