Cho hai số thực x,y thỏa mãn điều kiện x+y=1 và x.y khác 0.

Chứng minh rằng \(\frac{x}{y^3-1}-\frac{y}{x^3-1}+\frac{2\left(x-y\right)}{x^2y^2+3}=0\)

Giúp mình với!!!

độ dài quãng đường AB là

25x3=75[km]

vận tốc của ô tô khi chạy mất 1.5 giờ là

75:1.5=50[km/giờ]

đ/s:50 km/giờ

nhấn dùm mình chữ Đúng 0

1. The Imperial Academy is considered the first university in Viet Nam.

2. The doors are locked carefully.

3. Many flowers and trees are grown in my school everyday.

4. Everything in her house was stolen by thieves yesterday.

5. This laptop was bought by me last year.

6. He isn't helped with his homework.

7. Is the Temple of Literature surrounded by four busy streets?

8. Are your grandparents visited last month?

Chúc bạn học tốt!!!!!!