Impara online a risolvere i problemi di equazioni passo dopo passo. (cos(a)+cos(b))^2=1. Applicare la formula: x^a=b\to \left(x^a\right)^{\frac{1}{a}}=\pm b^{\frac{1}{a}}, dove a=2, b=1 e x=\cos\left(a\right)+\cos\left(b\right). Applicare la formula: a^b=a^b, dove a=1, b=\frac{1}{2} e a^b=\sqrt{1}. Applicare la formula: \left(x^a\right)^b=x, dove a=2, b=1, x^a^b=\sqrt{\left(\cos\left(a\right)+\cos\left(b\right)\right)^2}, x=\cos\left(a\right)+\cos\left(b\right) e x^a=\left(\cos\left(a\right)+\cos\left(b\right)\right)^2. Applicare la formula: x+a=b\to x=b-a, dove a=\cos\left(b\right), b=\pm 1, x+a=b=\cos\left(a\right)+\cos\left(b\right)=\pm 1, x=\cos\left(a\right) e x+a=\cos\left(a\right)+\cos\left(b\right).

(cos(a)+cos(b))^2=1