Question

para resolver a expressão
a) 5/3-(7/16•4-3/4) 6+raiz quadrada 1/81
b) 3/4•raiz quadrada 25/36-(6/5:12/5+1/4) 3
c) 7/3+raiz quadrada 49/64:21/8-(3/8•16/9) 2
d)(1/4:9/32-10/9•2/5) 3.raiz quadrada 81/256
pfv me ajude !Muito

Answer 1

a)
$\frac{5}{3} - ( \frac{7}{16} \times 4 - \frac{3}{4} )6 + \sqrt{ \frac{1}{81} } \\ \frac{5}{3} - ( \frac{7}{4} - \frac{3}{4} ) \times 6 + \frac{1}{9} \\ \frac{5}{3} - 1 \times 6 + \frac{1}{9} \\ \frac{5}{3} - 6 + \frac{1}{9} \\ - \frac{38}{9}$


b)
$\frac{3}{4} \times \sqrt{ \frac{25}{36} } - ( \frac{6}{5} \div \frac{12}{5} + \frac{1}{4} )3 \\ \frac{3}{4} \times \frac{5}{6} - (\frac{6}{5} \times \frac{5}{12} + \frac{1}{4} ) \times 3 \\ \frac{1}{4} \times \frac{5}{2} - ( \frac{1}{2} + \frac{1}{4} ) \times 3 \\ \frac{5}{8} - \frac{3}{4} \times 3 \\ \frac{5}{8} - \frac{9}{4} \\ - \frac{13}{8}$


c)
$\frac{7}{3} + \sqrt{ \frac{49}{64} } \div \frac{21}{8} - ( \frac{3}{8} \times \frac{16}{9} )2 \\ \frac{7}{3} + \frac{7}{8} \times \frac{8}{21} - \frac{2}{3} \times 2 \\ \frac{7}{3} + \frac{1}{3} - \frac{4}{3} \\ \frac{4}{3}$


d)
$( \frac{1}{4} \div \frac{9}{32} - \frac{10}{9} \times \frac{2}{5} )3 \sqrt{ \frac{81}{256} } \\ ( \frac{1}{4} \times \frac{32}{9} - \frac{2}{9} \times 2) \times 3 \times \frac{9}{16} \\ ( \frac{8}{9} - \frac{4}{9} ) \times 3 \times \frac{9}{16} \\ \frac{4}{9} \times 3 \times \frac{9}{16} \\ 3 \times \frac{1}{4} \\ \frac{3}{4}$