lcm 9 x/((sqrt(1-x^2))), 1/((x+sqrt(1+x^2))), 1/((sqrt(x+1)+\sqrt{x))}

解答

lcm

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

(x + 1 + x) (x + 1 + x^{2})

求解步骤

找到

1, (x + 1 + x^{2}), (x + 1 + x)

的最小公倍数

将最高次数乘以每个因数:

(x + 1 + x) \cdot (x + 1 + x^{2})

l c m (13 - 12 p), (13 + 12 p)

l c m x^{2} \cdot y, - 2 x^{2} \cdot y, - 7 x^{2} \cdot y, 8 x^{2} \cdot y

l c m - y + 6, 2 a \cdot b^{2} - 9 a

l c m \frac{3}{( x - 1 )}, \frac{k}{( x ( x + 4 ) )}

l c m (4 x - 5), (4 x + 20), (5 x - 5)^{2}