Matemática
nathannerd
5

cosx/1+senx-1-senx/cosx

+0
(1) Respostas
lenilson13meren

[latex]\frac{\cos x}{1+\sin x}-\frac{1-\sin x}{\cos x}=\frac{\cos^2x-(1-sin^2x)}{(1+\sin x)(\cos x)}=\frac{\cos^2x-(cos^2x)}{(1+\sin x)(\cos x)}=\frac{0}{(1+\sin x)(\cos x)}=0[/latex] OBS: Use parentese se nao fica mto dificil de entender.

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