April 2019 0 8 Report
Oblicz:

1. Prostą A i B ; B i C ; C i A

2. Pole trójkąta ABC

3. Prosta ⊥BC i A ; ⊥CA i B ; ⊥AB i C

4. Oblicz D ; E ; F

5. wektory│AB│;│BC│;│CA│

6. cos∡ABC ; cos∡BCA ; cos∡CAB

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