Impara online a risolvere i problemi di passo dopo passo. ((-2sin(x))/(cos(x)^2))/(1+-1/(cos(x)^2)). Applicare la formula: a+\frac{b}{c}=\frac{b+ac}{c}, dove a=1, b=-1, c=\cos\left(x\right)^2, a+b/c=1+\frac{-1}{\cos\left(x\right)^2} e b/c=\frac{-1}{\cos\left(x\right)^2}. Applicare la formula: \frac{\frac{a}{b}}{\frac{c}{f}}=\frac{af}{bc}, dove a=-2\sin\left(x\right), b=\cos\left(x\right)^2, a/b/c/f=\frac{\frac{-2\sin\left(x\right)}{\cos\left(x\right)^2}}{\frac{-1+\cos\left(x\right)^2}{\cos\left(x\right)^2}}, c=-1+\cos\left(x\right)^2, a/b=\frac{-2\sin\left(x\right)}{\cos\left(x\right)^2}, f=\cos\left(x\right)^2 e c/f=\frac{-1+\cos\left(x\right)^2}{\cos\left(x\right)^2}. Applicare l'identità trigonometrica: -1+\cos\left(\theta \right)^2=-\sin\left(\theta \right)^2. Applicare la formula: \frac{a}{a^n}=\frac{1}{a^{\left(n-1\right)}}, dove a=\sin\left(x\right) e n=2.

((-2sin(x))/(cos(x)^2))/(1+-1/(cos(x)^2))