Đáp án: Cho tam giác EDF vuông tại E khi đó CosF =? - xét tam giác EDF(E=90) theo HTL tc cosF=(EF/FD)

xét tam giác EDF(E=90) theo HTL tc cosF=(EF/FD)

lanhk70907

4 tháng trước

Cho tam giác EDF vuông tại E khi đó CosF =?

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bemun2k7

4 tháng trước

xét tam giác EDF(E=90) theo HTL tc

cosF=$\frac{EF}{FD}$

Bọ Xít

4 tháng trước

Đáp án:

Giải thích các bước giải:

XétΔ EDF vuông tại E:

CosF=$\frac{EF}{FD}$

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Cho tam giác EDF vuông tại E khi đó CosF =?

2 câu trả lời

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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.

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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.