Mathematics: Hey can you me posted picture of question

Hey can you me posted picture of question

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rosemary909

14.03.2022

The correct answer is option A.

One way to check if a function is inverse of the other is to take their composition. The composition of two inverse functions will always result in x.

$F(x) = x-2 \\ \\ 
F^{-1}(x)=x+2 \\ \\ 
F(F^{-1}(x)) = F(x+2) \\ \\ 
F(F^{-1}(x)) = (x+2) -2 = x
$

Thus x - 2 and x + 2 are the inverse of each other.

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Ответ:

rsmith4531

21.10.2022

Mathematics

$\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta r^2}{2}\qquad 
\begin{cases}
\theta=\textit{angle in radians}\\
r=radius\\
----------\\
\theta=\frac{\pi }{10}\\
r=20
\end{cases}\implies A=\cfrac{\frac{\pi }{10}\cdot 20^2}{2}$

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