Answers

  • Brainly User
2016-07-03T23:47:03+08:00
Y² = 48

 \sqrt{ y^{2} } = \sqrt{48}

y =  \sqrt{(16)(3)}

y = +4 \sqrt{3}  and -4 \sqrt{3}


9y² = 1

9y²/9 = 1/9

y² = 1/9

 \sqrt{ y^{2} } = \sqrt{ \frac{1}{9} }

y = +1/3  and  -1/3

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