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y= 2x-7. x=?
L=F×d×cos alfa. d=? ​


Răspuns :

[tex]y=2x-7 \ \ \Rightarrow x=\frac{7+y}{2} \\ \\ L=F\cdot d \cdot \cos \alpha \ \ \Rightarrow d=\frac{L}{F \cdot \cos \alpha}[/tex]