Impara online a risolvere i problemi di passo dopo passo. (cos(b)+1)/(cos(b)-1). Applicare la formula: \frac{a}{b}=\frac{a}{b}\frac{conjugate\left(b\right)}{conjugate\left(b\right)}, dove a=\cos\left(b\right)+1, b=\cos\left(b\right)-1 e a/b=\frac{\cos\left(b\right)+1}{\cos\left(b\right)-1}. Applicare la formula: \frac{a}{b}\frac{c}{f}=\frac{ac}{bf}, dove a=\cos\left(b\right)+1, b=\cos\left(b\right)-1, c=\cos\left(b\right)+1, a/b=\frac{\cos\left(b\right)+1}{\cos\left(b\right)-1}, f=\cos\left(b\right)+1, c/f=\frac{\cos\left(b\right)+1}{\cos\left(b\right)+1} e a/bc/f=\frac{\cos\left(b\right)+1}{\cos\left(b\right)-1}\frac{\cos\left(b\right)+1}{\cos\left(b\right)+1}. Applicare la formula: x\cdot x=x^2, dove x=\cos\left(b\right)+1. Applicare la formula: \left(a+b\right)\left(a+c\right)=a^2-b^2, dove a=\cos\left(b\right), b=1, c=-1, a+c=\cos\left(b\right)+1 e a+b=\cos\left(b\right)-1.

(cos(b)+1)/(cos(b)-1)