$$$\frac{\sqrt{2}}{2} \left[\begin{array}{ccc}0 & \sqrt{2} & 0\\1 & 2 & 1\\1 & 0 & 1\end{array}\right]$$$

Laskin kertoo $$$3$$$x$$$3$$$-matriisin $$$\left[\begin{array}{ccc}0 & \sqrt{2} & 0\\1 & 2 & 1\\1 & 0 & 1\end{array}\right]$$$ skalaarilla $$$\frac{\sqrt{2}}{2}$$$ ja näyttää vaiheet.
$$$\times$$$
A

Jos laskin ei laskenut jotakin tai olet havainnut virheen tai sinulla on ehdotus tai palaute, ole hyvä ja ota meihin yhteyttä.

Syötteesi

Laske $$$\frac{\sqrt{2}}{2} \left[\begin{array}{ccc}0 & \sqrt{2} & 0\\1 & 2 & 1\\1 & 0 & 1\end{array}\right]$$$.

Ratkaisu

Kerro matriisin jokainen alkio skalaarilla:

$$${\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left[\begin{array}{ccc}0 & \sqrt{2} & 0\\1 & 2 & 1\\1 & 0 & 1\end{array}\right] = \left[\begin{array}{ccc}{\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left(0\right) & {\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left(\sqrt{2}\right) & {\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left(0\right)\\{\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left(1\right) & {\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left(2\right) & {\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left(1\right)\\{\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left(1\right) & {\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left(0\right) & {\color{Red}\left(\frac{\sqrt{2}}{2}\right)}\cdot \left(1\right)\end{array}\right] = \left[\begin{array}{ccc}0 & 1 & 0\\\frac{\sqrt{2}}{2} & \sqrt{2} & \frac{\sqrt{2}}{2}\\\frac{\sqrt{2}}{2} & 0 & \frac{\sqrt{2}}{2}\end{array}\right]$$$

Vastaus

$$$\frac{\sqrt{2}}{2} \left[\begin{array}{ccc}0 & \sqrt{2} & 0\\1 & 2 & 1\\1 & 0 & 1\end{array}\right] = \left[\begin{array}{ccc}0 & 1 & 0\\\frac{\sqrt{2}}{2} & \sqrt{2} & \frac{\sqrt{2}}{2}\\\frac{\sqrt{2}}{2} & 0 & \frac{\sqrt{2}}{2}\end{array}\right]\approx \left[\begin{array}{ccc}0 & 1 & 0\\0.707106781186548 & 1.414213562373095 & 0.707106781186548\\0.707106781186548 & 0 & 0.707106781186548\end{array}\right]$$$A


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