Question

5. calculați:
A
B
C
D
Va rog dau coroana
​

Answer 1

Răspuns:

a) $\sqrt{\frac{1}{9} } = \frac{1}{3} } ;\sqrt{\frac{81}{25} } = \frac{9}{5} } =1\frac{4}{5} ; \sqrt{\frac{169}{4} } = \frac{13}{2} = 6\frac{1}{2} ; \sqrt{\frac{625}{289} } = \frac{25}{17} = 1\frac{8}{17} ; \sqrt{\frac{3}{300} } = \frac{\sqrt{3} }{10\sqrt{3} } }$

b)

$\sqrt{1\frac{9}{16} } = \sqrt{\frac{25}{16} } = \frac{5}{4} =1\frac{1}{4} ; \sqrt{2\frac{1}{4} } = \sqrt{\frac{9}{4} } = \frac{3}{2} =1 \frac{1}{2} ; \sqrt{3\frac{13}{36} } = \sqrt{\frac{121}{36} } = \frac{11}{6} =1 \frac{5}{6} ; \sqrt{4\frac{29}{49} } = \sqrt{\frac{225}{49} } = \frac{15}{7} = 2\frac{1}{7} ; \sqrt{5\frac{29}{100} } = \sqrt{\frac{529}{100} } = \frac{23}{10} =2 \frac{3}{10}$

c)

$\sqrt{0,81} = 0,9 ; \sqrt{0,16} = 0,4 ; \sqrt{1,96} =1,4;\sqrt{4,41} =2,1; \sqrt{20,25} = 4,5$