\[\boxed{\text{838\ (838).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[f(x) = 1,5x + 1;\ \ \ \ \ \ - 4 \leq x \leq 2\]
\[x\] | \[- 4\] | \[- 3\] | \[- 2\] | \[- 1\] | \[0\] | \[1\] | \[2\] |
---|---|---|---|---|---|---|---|
\[y\] | \[- 5\] | \[- 3,5\] | \[- 2\] | \[- 0,5\] | \[1\] | \[2,5\] | \[4\] |
\[\boxed{\text{838.\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[1)\ a + a² + a³ + a^{4} + \ldots + a^{100}\]
\[при\ a = 1 \Longrightarrow\]
\[\Longrightarrow 1 + 1 + 1 + 1 + \ldots + 1^{100} =\]
\[= 100\]
\[2)\ a + a² + a³ + a^{4} + \ldots + a^{98} + a^{99}\]
\[при\ a = 1 \Longrightarrow\]
\[\Longrightarrow 1 + 1 + 1 + \ldots + 1^{99} = 99\]
\[при\ a = - 1 \Longrightarrow\]
\[\Longrightarrow - 1 + 1 - 1 + 1 + \ldots + 1^{98} - 1^{99} =\]
\[= - 1\]
\[3)\ aa^{2}a^{3}a^{4}\ldots a^{99}a^{100}\]
\[при\ a = 1 \Longrightarrow\]
\[\Longrightarrow 1 \cdot 1 \cdot 1 \cdot 1\ldots \cdot 1 \cdot 1 = 1\]
\[при\ a = - 1 \Longrightarrow\]
\[\Longrightarrow - 1 \cdot 1 \cdot ( - 1) \cdot 1\ldots \cdot ( - 1)^{99} \cdot 1 =\]
\[= 1\]
\[4)\ aa^{2}a^{3}a^{4}\ldots a^{98}a^{99}\]
\[при\ a = 1 \Longrightarrow\]
\[\Longrightarrow 1 \cdot 1 \cdot 1 \cdot 1\ldots \cdot 1 \cdot 1 = 1\]
\[при\ a = - 1 \Longrightarrow\]
\[\Longrightarrow - 1 \cdot 1 \cdot ( - 1) \cdot 1\ldots \cdot 1 \cdot ( - 1) =\]
\[= - 1\]