Question

Срочно! Номера 5 и 6!

Answer 1

$5)quad xin [-3,4, ]; ,; ; ; yin [-2,3, ]\\6)quad a); f(x)=x^2-x^3+5; ,; xin (-infty ,+infty )\\b); f(x)= frac{x+3}{(x+2)(3x-5)}\\xne -2,; xne frac{5}{3}\\xin (-infty ,-2)cup (-2,frac{5}{3})cup (frac{5}{3},+infty )\\c); f(x)=sqrt{14-7x}\\14-7x geq 0; ,; 7x leq 14; ,; x leq 2\\xin (-infty ,2, ]\\d); f(x)= frac{sqrt{x+6}}{x} \\xne 0,; x+6 geq 0\\xne 0,; x geq -6\\xin [-6,0)cup (0,+infty )$