Question

B) C) - D) - } E)-1 16) Вычислите f(-1) - f(-3). f(x) = |2+1, 2>-2 3-4/1, 1≤-2. 3)3 C)6 D)4 Е)9 если​

Answer 1

$\displaystyle\bf\\1)\\\\-1 > -2 \ \ \Rightarrow \ \ \ f\Big(-1\Big)=\Big|-1+1\Big|=\Big|0\Big|=0\\\\\\-3\leq -2 \ \ \ \Rightarrow \ \ \ f\Big(-3\Big)=3-4\cdot\Big|-3\Big|=3-4\cdot 3=3-12=-9\\\\\\f\Big(-1\Big)-f\Big(-3\Big)=0-\Big(-9\Big)=0+9=9\\\\\\Otvet \ : \ 9$