Đáp án:
Giải thích các bước giải:
= √x ( √x+ √y)/(√y ( √y+ √x)
= √x/√y
Đáp án + Giải thích các bước giải:
x+√xyy+√xy=√x(√x+√y)√y(√x+√y)=√x√y
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.