moi nguoi giup mjnh bai nay voi, kho qua.

S

somebody1

[TEX]a) U_{L max} \Rightarrow w_L=\sqrt{\frac{2}{2LC-R^2C^2}} \Rightarrow f=w/2\pi[/TEX]


[TEX]b)U_{C max} \Rightarrow w_C=\sqrt{\frac{2LC-R^2C^2}{2L^2C^2}} \Rightarrow f=w/2\pi[/TEX]
 
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