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1.E: Застосування обмежень (вправи)
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14. $\lim\limits_{x\to 0}$ , де $f(x) = \begin{cases}\cos x \quad & x\le 0\\ x^2+3x+1 &x>0 \end{cases}.$ 15. $\lim\limits_{x\to \pi/2}$ , де\( f(x) = \begin{cases}\sin x \quad & x\le \pi/2\\ \cos ...14. $\lim\limits_{x\to 0}$ , де $f(x) = \begin{cases}\cos x \quad & x\le 0\\ x^2+3x+1 &x>0 \end{cases}.$ 15. $\lim\limits_{x\to \pi/2}$ , де $f(x) = \begin{cases}\sin x \quad & x\le \pi/2\\ \cos x &x>\pi/2 \end{cases}.$ 15. $f(x) = \begin{cases} x^-1 \quad &x<-1 \\ x^3+1 &-1\le x \le 1 \\ x^2+1 &x>1 \end{cases}$ 19. $f(x) = \begin{cases} x^2 \quad &x<2 \\ x+1 &x=2 \\ -x^2+2x+4 &x>2 \end{cases}$