September 2018 2 15 Report
1) Oblicz:
a) tgα |AB|=16 |AD|=6 |DC|=8
b) ctgα |AD|=7 |BC|=25
rysunek w załączniku;)

2)Znajdź ctg kąta nachylenia prostej y=1,5x-5 do osi X.

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