Cho biểu thức
Q=aa2-b2-1+aa2-b2:ba-a2-b2với a>b>0
Xác định giá trị của Q khi a = 3b
Thay a = 3b vào ta được:
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.
We should decorate our living room with _____ orange banner. We also need ________ ribbons, balloons, party hats and costume.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.