化简 (x)(cos(x))^x*sqrt(((x^2-1))/((x^2+1)))

解答

化简

(x) (cos (x))^{x} \cdot \frac{( x ^{2} - 1 )}{( x ^{2} + 1 )}

x cos^{x} (x) \frac{x ^{2} - 1}{x ^{2} + 1}

求解步骤

(x) cos^{x} (x) \frac{x ^{2} - 1}{x ^{2} + 1}

使用法则:

(a) = a

(x) = x

= x cos^{x} (x) \frac{x ^{2} - 1}{x ^{2} + 1}

s im pl i f y \frac{( a - 3 a + 2 )}{( a - 2 )}

e x p an d 16 - 25 \cdot (p - q)^{2}

e x p an d 5 x^{2} (x + 2) (x + 3) (x - 2)

f a c t or m^{4} + 4 m^{2} n^{2} + 16 n^{4}

s im pl i f y f (x) - \frac{2}{2032}