Question

VA ROOOGGG AJUTATI-MA!!

Answer 1

a) 9/4*16/18:7/6= 4/2:7/6=2*6/7=12/7
b) (4/5)^13:(4/5)12=4/5
c)

Answer 2

a) $\frac{9}{4}\cdot\frac{16}{18}:\frac{13}{6}=\frac{144}{72}\cdot\frac{6}{13}=2\cdot \frac{6}{13}=\frac{12}{13}$
b)$(\frac{4}{5})^{13}:(\frac{4}{5})^{12}=\frac{4}{5}$
c)
[tex]\{[(\frac{2}{3})^{1010}]^2\cdot(\frac{2}{3})^{20}-(\frac{2}{3})^{2000}\}\cdot(\frac{2}{3})^{4000}= [(\frac{2}{3})^{2040}-(\frac{2}{3})^{2000}]\cdot(\frac{2}{3})^{4000}=\\ (\frac{2}{3})^{6000}((\frac{2}{3})^{40}-1)[/tex]