H
hoanghaa1


pp đánh giá nhé
1
\sqrt[2]{2-x^2}=(2-x^2)^2
2
\sqrt[2]{3-x}\sqrt[2]{4-x}+\sqrt[2]{5-x}\sqrt[2]{4-x}+\sqrt[2]{3-x}\sqrt[2]{5-x}
1
\sqrt[2]{2-x^2}=(2-x^2)^2
2
\sqrt[2]{3-x}\sqrt[2]{4-x}+\sqrt[2]{5-x}\sqrt[2]{4-x}+\sqrt[2]{3-x}\sqrt[2]{5-x}