1. Find extrema and intervals of increasing and decreasing the function
[tex]y = \frac{ {e }^ { - (x + 2)} }{x + 2} [/tex]
2. Find inflection points and intervals of concavity and convexity of the function:
[tex]y = \frac{2x - 1}{(x - 1) ^{2} } [/tex]
​