Find a normal vector to the level surface of the function f(x, y, z) = x + 2yz + 2 at point [x, y, z], with first coordinate equal to 1. Use square brackets to enter your answer, which may depend on x, y, z. Thus it will be of the form [1, . ..,.. .] The normal vector is A Overview Check (3) standard function logic vector abc unit ENG C Search Th US Mostly cloudy F3 F4 F5 F6 FZ F8 FO FIC O LA A Prt Sc Insert Delete 5 O O Backspace