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dimostrare tan2(x)−sin2(x)=tan2(x)sin2(x)
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Solution
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Solve by:
One step at a time
tan2(x)−sin2(x)=tan2(x)sin2(x)
Manipolando il lato destro
tan2(x)sin2(x)
Riscrivere utilizzando identità trigonometriche
=tan2(x)(1−cos2(x))
Espandi (1−cos2(x))tan2(x):tan2(x)−tan2(x)cos2(x)
=tan2(x)−cos2(x)tan2(x)
Riscrivere utilizzando identità trigonometriche
=tan2(x)−sin2(x)
Abbiamo mostrato che i due lati possono prendere la stessa forma