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$$$\frac{1}{\left|{t}\right|}\cdot \left\langle t, 0\right\rangle$$$
Sua entrada
Calcule $$$\frac{1}{\left|{t}\right|}\cdot \left\langle t, 0\right\rangle$$$.
Solução
Multiplique cada coordenada do vetor pelo escalar:
$$${\color{BlueViolet}\left(\frac{1}{\left|{t}\right|}\right)}\cdot \left\langle t, 0\right\rangle = \left\langle {\color{BlueViolet}\left(\frac{1}{\left|{t}\right|}\right)}\cdot \left(t\right), {\color{BlueViolet}\left(\frac{1}{\left|{t}\right|}\right)}\cdot \left(0\right)\right\rangle = \left\langle \frac{t}{\left|{t}\right|}, 0\right\rangle$$$
Resposta
$$$\frac{1}{\left|{t}\right|}\cdot \left\langle t, 0\right\rangle = \left\langle \frac{t}{\left|{t}\right|}, 0\right\rangle$$$A
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