Question

Inh gia tri cua bieu thuc sau

     \(\frac{^{\sqrt{3^2}}-\sqrt{39^2}}{\sqrt{7^2}-\sqrt{91^2}}\)

Answer 1

\(\frac{\sqrt{3^2}-\sqrt{39^2}}{\sqrt{7^2}-\sqrt{91^2}}=\frac{3-39}{7-91}=\frac{-36}{-84}\)

\(=\frac{3}{7}\)

Answer 2

tui bt lau r

hoi cho vui thui