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Projeção de um vetor sobre o outro
Já procurei em diversos sites na internet, e não acho nenhuma solução adequada, eu sei as formulas e essa materia, porém estou com dificuldade de resolver essa questão. esse exercicio me ajudara na prova da faculdade. Gostaria de saber, como solucionar o exercicio: Determine o vetor projeção do vetor w=(-4,3) sobre o vetor v= (2,-1)
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Answer #1
Projeção w=(-4,3) sobre o vetor v= (2,-1)
Resposta: / || v ||² * v
= ( -4 * 2 ) + ( 3 * -1 ) = -11.
|| v ||² = ( ? 2² + -1² )² = ( ? 4 + 1 )² = ( 2+1 )² = ( 3 )² = 9.
Projeção de u sobre v = -11 / 9 * (2, -1) = ( -11 / 9 * 2, -11 / 9 * -1 ) = ( -22/9, 11/9 ).