Question

СРОЧНО! ПОМОГИТЕ РЕШИТЬ

Answer 1

$displaystyle frac{2,45^{2}+4,9*3,55+3,55^{2}}{4,23^{2}-4,23*2,46+1,23^{2}}= frac{(2,45+3,55)^{2}}{(4,23-1,23)^{2}}= frac{6^{2}}{3^{2}}= frac{36}{9}=4$