Question

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Answer 1

Resposta:

$y {}^{2} = a {}^{2} + {b}^{2} \\ y {}^{2} = {4}^{2} + 6 {}^{2} \\ y {}^{2} = 16 + 36 \\ {y }^{2} = 52 \\ y = 3 \sqrt{6}$