Question

a)√25 sobre 36- √1 sobre 9

b)-4-√121

c)-10+√169

Answer 1

a) $\sqrt{\frac{25}{36} } - \sqrt{ \frac{1}{9} } = \frac{5}{6} - \frac{1}{3} = \frac{5-2}{6} = \frac{3}{6} = \frac{1}{2}$

b) -4 - √121 = - 4 - 11 = -15

c) -10+√169 = -10 + 13 = 3

Answer 2

$\frac{ \sqrt{25} }{36} - \frac{ \sqrt{1} }{9} = \frac{5}{36} - \frac{1}{9} = \frac{5}{36} - \frac{4}{36} = \frac{1}{36} \\ \\ -4- \sqrt{121} =-4-11=-15 \\ \\ -10+ \sqrt{169} =-10+13=3$