MCQ
If $a = (2,\,\,5)$ and $b = (1,\,\,4),$ then the vector parallel to $(a + b)$ is
  • A
    $(3, 5)$
  • B
    $(1, 1)$
  • $(1, 3)$
  • D
    $(8, 5)$

Answer

Correct option: C.
$(1, 3)$
c
(c) $a + b = 3i + 9j = 3(i + 3j).$ Hence it is parallel to $(1,\,3).$

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