Diferenças entre edições de "Ortogonalização e normalização"

Fonte: My Solutions
Saltar para a navegação Saltar para a pesquisa
 
(Há 4 edições intermédias do mesmo utilizador que não estão a ser apresentadas)
Linha 16: Linha 16:
 
</div>
 
</div>
 
</div>
 
</div>
Considere a seguinte base de \( \mathbb{}\) \(\left\{\left(\begin{array}{c}3\\1\\-1\\\end{array}\right),\left(\begin{array}{c}1\\0\\0\\\end{array}\right),\left(\begin{array}{c}-2\\-1\\0\\\end{array}\right)\right\}\)Diga qual dos seguintes conjuntos corresponde á ortonormalização desta base.
+
Considere a seguinte base de \( \mathbb{R}^3 \) \(\left\{\left(\begin{array}{c}-1\\-2\\-1\\\end{array}\right),\left(\begin{array}{c}-1\\1\\2\\\end{array}\right),\left(\begin{array}{c}-1\\-2\\1\\\end{array}\right)\right\}\). Diga qual dos seguintes conjuntos corresponde á ortonormalização desta base.
  
A)\(\left\{\left(\begin{array}{c}\frac{3}{\sqrt{11}}\\\frac{1}{\sqrt{11}}\\-\frac{1}{\sqrt{11}}\\\end{array}\right),\left(\begin{array}{c}\sqrt{\frac{2}{11}}\\-\frac{3}{\sqrt{22}}\\\frac{3}{\sqrt{22}}\\\end{array}\right),\left(\begin{array}{c}0\\-\frac{1}{\sqrt{2}}\\-\frac{1}{\sqrt{2}}\\\end{array}\right)\right\}\),
+
A)\(\left\{\left(\begin{array}{c}-\frac{1}{\sqrt{6}}\\-\sqrt{\frac{2}{3}}\\-\frac{1}{\sqrt{6}}\\\end{array}\right),\left(\begin{array}{c}-\frac{1}{\sqrt{2}}\\0\\\frac{1}{\sqrt{2}}\\\end{array}\right),\left(\begin{array}{c}\frac{1}{\sqrt{3}}\\-\frac{1}{\sqrt{3}}\\\frac{1}{\sqrt{3}}\\\end{array}\right)\right\}\),
B)\(\left(\begin{array}{ccc}\frac{1}{\sqrt{3}}&#038;\frac{1}{\sqrt{3}}&#038;-\frac{1}{\sqrt{3}}\\-\frac{7}{\sqrt{78}}&#038;\sqrt{\frac{2}{39}}&#038;-\frac{5}{\sqrt{78}}\\\frac{1}{\sqrt{26}}&#038;-2\sqrt{\frac{2}{13}}&#038;-\frac{3}{\sqrt{26}}\\\end{array}\right)\),
+
B)\(\left\{\left(\begin{array}{c}-\frac{1}{\sqrt{6}}\\\frac{1}{\sqrt{6}}\\\sqrt{\frac{2}{3}}\\\end{array}\right),\left(\begin{array}{c}-\frac{1}{\sqrt{2}}\\-\frac{1}{\sqrt{2}}\\0\\\end{array}\right),\left(\begin{array}{c}\frac{1}{\sqrt{3}}\\-\frac{1}{\sqrt{3}}\\\frac{1}{\sqrt{3}}\\\end{array}\right)\right\}\),
C)\(\left(\begin{array}{ccc}-\frac{2}{3}&#038;\frac{1}{3}&#038;-\frac{2}{3}\\\frac{11}{3\sqrt{26}}&#038;\frac{4\sqrt{\frac{2}{13}}}{3}&#038;-\frac{7}{3\sqrt{26}}\\\frac{1}{\sqrt{26}}&#038;-2\sqrt{\frac{2}{13}}&#038;-\frac{3}{\sqrt{26}}\\\end{array}\right)\),
+
C)\(\left\{\left(\begin{array}{c}-\frac{1}{\sqrt{6}}\\-\sqrt{\frac{2}{3}}\\\frac{1}{\sqrt{6}}\\\end{array}\right),\left(\begin{array}{c}-\frac{1}{\sqrt{30}}\\-\sqrt{\frac{2}{15}}\\-\sqrt{\frac{5}{6}}\\\end{array}\right),\left(\begin{array}{c}-\frac{2}{\sqrt{5}}\\\frac{1}{\sqrt{5}}\\0\\\end{array}\right)\right\}\),
D)\(\left(\begin{array}{ccc}0&#038;-\frac{1}{\sqrt{2}}&#038;-\frac{1}{\sqrt{2}}\\-2\sqrt{\frac{2}{17}}&#038;\frac{3}{\sqrt{34}}&#038;-\frac{3}{\sqrt{34}}\\\frac{3}{\sqrt{17}}&#038;\frac{2}{\sqrt{17}}&#038;-\frac{2}{\sqrt{17}}\\\end{array}\right)\)
+
D)\(\left\{\left(\begin{array}{c}-\frac{1}{\sqrt{6}}\\-\sqrt{\frac{2}{3}}\\\frac{1}{\sqrt{6}}\\\end{array}\right),\left(\begin{array}{c}-\sqrt{\frac{5}{42}}\\4\sqrt{\frac{2}{105}}\\\frac{11}{\sqrt{210}}\\\end{array}\right),\left(\begin{array}{c}-\sqrt{\frac{5}{7}}\\\frac{1}{\sqrt{35}}\\-\frac{3}{\sqrt{35}}\\\end{array}\right)\right\}\)
  
  
Para obter o zip que contém as instâncias deste exercício clique aqui[]
+
Para obter o zip que contém as instâncias deste exercício clique aqui[https://drive.tecnico.ulisboa.pt/download/1695923671436179/instanciasGramSchmidt.zip]
  
 
Se deseja obter o código fonte que gera os exercícios contacte miguel.dziergwa@ist.utl.pt
 
Se deseja obter o código fonte que gera os exercícios contacte miguel.dziergwa@ist.utl.pt

Edição atual desde as 13h15min de 28 de julho de 2016

Metadata

  • CONTEXTO : Primeiro ciclo universitário
  • AREA: Matemática
  • DISCIPLINA: Álgebra Linear
  • ANO: 1
  • LINGUA: pt
  • AUTOR: Equipa Álgebra Linear
  • MATERIA PRINCIPAL: Produtos internos e normas
  • DESCRICAO: Ortogo e norm em subespaço
  • DIFICULDADE: easy
  • TEMPO MEDIO DE RESOLUCAO: 10 mn
  • TEMPO MAXIMO DE RESOLUCAO: 30 mn
  • PALAVRAS CHAVE:

Considere a seguinte base de \( \mathbb{R}^3 \) \(\left\{\left(\begin{array}{c}-1\\-2\\-1\\\end{array}\right),\left(\begin{array}{c}-1\\1\\2\\\end{array}\right),\left(\begin{array}{c}-1\\-2\\1\\\end{array}\right)\right\}\). Diga qual dos seguintes conjuntos corresponde á ortonormalização desta base.

A)\(\left\{\left(\begin{array}{c}-\frac{1}{\sqrt{6}}\\-\sqrt{\frac{2}{3}}\\-\frac{1}{\sqrt{6}}\\\end{array}\right),\left(\begin{array}{c}-\frac{1}{\sqrt{2}}\\0\\\frac{1}{\sqrt{2}}\\\end{array}\right),\left(\begin{array}{c}\frac{1}{\sqrt{3}}\\-\frac{1}{\sqrt{3}}\\\frac{1}{\sqrt{3}}\\\end{array}\right)\right\}\), B)\(\left\{\left(\begin{array}{c}-\frac{1}{\sqrt{6}}\\\frac{1}{\sqrt{6}}\\\sqrt{\frac{2}{3}}\\\end{array}\right),\left(\begin{array}{c}-\frac{1}{\sqrt{2}}\\-\frac{1}{\sqrt{2}}\\0\\\end{array}\right),\left(\begin{array}{c}\frac{1}{\sqrt{3}}\\-\frac{1}{\sqrt{3}}\\\frac{1}{\sqrt{3}}\\\end{array}\right)\right\}\), C)\(\left\{\left(\begin{array}{c}-\frac{1}{\sqrt{6}}\\-\sqrt{\frac{2}{3}}\\\frac{1}{\sqrt{6}}\\\end{array}\right),\left(\begin{array}{c}-\frac{1}{\sqrt{30}}\\-\sqrt{\frac{2}{15}}\\-\sqrt{\frac{5}{6}}\\\end{array}\right),\left(\begin{array}{c}-\frac{2}{\sqrt{5}}\\\frac{1}{\sqrt{5}}\\0\\\end{array}\right)\right\}\), D)\(\left\{\left(\begin{array}{c}-\frac{1}{\sqrt{6}}\\-\sqrt{\frac{2}{3}}\\\frac{1}{\sqrt{6}}\\\end{array}\right),\left(\begin{array}{c}-\sqrt{\frac{5}{42}}\\4\sqrt{\frac{2}{105}}\\\frac{11}{\sqrt{210}}\\\end{array}\right),\left(\begin{array}{c}-\sqrt{\frac{5}{7}}\\\frac{1}{\sqrt{35}}\\-\frac{3}{\sqrt{35}}\\\end{array}\right)\right\}\)


Para obter o zip que contém as instâncias deste exercício clique aqui[1]

Se deseja obter o código fonte que gera os exercícios contacte miguel.dziergwa@ist.utl.pt