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Question

$text Given: end text straight A with rightwards arrow on top equals 2 straight i with not stretchy hat on top plus 3 straight j with not stretchy hat on top text and end text straight B with rightwards arrow on top equals 5 straight i with not stretchy hat on top minus 6 straight j with not stretchy hat on top. text The magnitude of end text straight A with rightwards arrow on top plus straight B with rightwards arrow on top text is end text$

4 units
4 units
$\sqrt{58} units$
$\sqrt{61} units$

The correct answer is: $square root of 58 text units end text$

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