化简 1/(4-sqrt(3))

解答

化简

\frac{1}{4 - 3}

\frac{4 + 3}{13}

十进制

0.44092 \dots

求解步骤

\frac{1}{4 - 3}

乘以共轭根式

\frac{4 + 3}{4 + 3}

= \frac{1 \cdot ( 4 + 3 )}{( 4 - 3 ) ( 4 + 3 )}

1 \cdot (4 + 3) = 4 + 3

(4 - 3) (4 + 3) = 13

= \frac{4 + 3}{13}

f a c t or 8 x^{3} + 72 x^{2} + 160 x

x + 9 = 5 x - 11

- 4 e - 9 = 19

[3 k + 19] < 5

m^{2} + 8 m = - 3