sin^2 ( x ) - cos^2 ( x )

Perguntas Frequentes

• Solução ${\sin }^2\left(x\right)-{\cos }^2\left(x\right)$

  

  $$-\cos \left(2x\right)$$

• Fator ${\sin }^2\left(x\right)-{\cos }^2\left(x\right)$

  

  $$\left(\sin \left(x\right)+\cos \left(x\right)\right)\left(\sin \left(x\right)-\cos \left(x\right)\right)$$