The vectors \( 5 i+8 j \) and \( 2 i+7 j \) are added. The P magnit...

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The vectors \( 5 i+8 j \) and \( 2 i+7 j \) are added. The
P magnitude of the sum of these vector is

W.
(1) \( \sqrt{274} \)
(2) 38
(3) 238
(4) 560
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