Assinale a alternativa que apresenta a soma entre os vetores u with rightwards arrow on top equals left parenthesis 1 comma 2 right parenthesis e space v with rightwards arrow on top equals left parenthesis negative 2 comma 0 right parenthesis: a. u with rightwards arrow on top plus v with rightwards arrow on top equals open parentheses 1 comma 2 close parentheses b. u with rightwards arrow on top plus v with rightwards arrow on top equals open parentheses 0 comma 2 close parentheses c. u with rightwards arrow on top plus v with rightwards arrow on top equals open parentheses 2 comma negative 1 close parentheses d. u with rightwards arrow on top plus v with rightwards arrow on top equals open parentheses 3 comma 2 close parentheses e. u with rightwards arrow on top plus v with rightwards arrow on top equals open parentheses negative 1 comma 2 close parentheses
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Resposta: alternativa E :(-1,2)
Explicação passo a passo: CONFERIDO NO AVA
Para encontrar a soma de dois vetores, basta adicionar as respectivas componentes dos vetores. Como os vetores são [tex]\(\vec{u} = (1, 2)\)[/tex] e [tex]\(\vec{v} = (-2, 0)\)[/tex], a soma dos vetores é:
[tex]\(\vec{u} + \vec{v} = (1 + (-2), 2 + 0) = (-1, 2).\)[/tex]
soma-se os valores de x (x+x) e y (y+y)
Portanto, a soma dos vetores [tex]\(\vec{u} = (1, 2)\) e \(\vec{v} = (-2, 0)\)[/tex] é [tex]\((-1, 2) \)[/tex] .