zp Use the Chain Rule to find , where z = 4x sin y, x =t, and y =515. dt dz ax 4 sin y (Type an expression using x and y as the variables.) dx 2t dt (Type an expression using t as the variable.) zo = 4x cos y (Type an expression using x and y as the variables.) dy 25+4 dt (Type an expression using t as the variable.) az dt (Type an expression using t as the variable.)