Question

36 номер пожалуйста !

Answer 1

$1); ; y=4cos(x+frac{pi }{6})-3\\D(y)=R=(-infty ,+infty )\\-1leq cos(x+frac{pi }{6})leq 1; ; to ; ; -4leq 4cos(x+frac{pi }{6})leq 4\\-7leq 4cos(x+frac{pi}{6})leq 1\\E(y)=[-7;1, ]\\\2); ; y=frac{1}{2}, sin(x-frac{pi}{4})+1,5\\D(y)=R \\-1leq sin(x-frac{pi}{4})leq 1; ; to ; ; -frac{1}{2}leq frac{1}{2}, sin(x-frac{pi }{4})leq frac{1}{2}\\1leq 0,5sin(x-frac{pi}{4})+1,5leq 2\\E(y)=[, 1;2, ]$