Cho a, b, c là 3 số thực dương thỏa mãn: `a + b + c = 3`. Chứng minh rằng: $\frac{a+1}{b^{2}+1}$ + $\frac{b+1}{c^{2}+1}$ + $\frac{c+1}{a^{2}+1}$ $\geq$ `3`

Choose the best answer.

I think you should buy _____  pack of mineral water instead. And you can also buy _____  snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______  cookies and soft candies.

Choose the best answer.

We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

Choose the best answer.

I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.