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how will you combine vec(E ) and vec(A) ...

how will you combine `vec(E ) and vec(A)` such that their vector sum is
(i) `vec(A) ` (ii) `vec(E ) ` (iii) `2 vec(A)`

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(i) `vec(E ) +2 vec(A)` (ii) `vec(A) + 2 vec(E )` (iii) `vec(E ) + 3 vec(A)`
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