化简 1/3+2/9 (0.9-1)

解答

化简

\frac{1}{3} + \frac{2}{9} (0.9 - 1)

\frac{14}{45}

十进制

0.31111 \dots

求解步骤

\frac{1}{3} + \frac{2}{9} (0.9 - 1)

\frac{2}{9} (0.9 - 1) = - \frac{1}{45}

= \frac{1}{3} - \frac{1}{45}

\frac{1}{3} - \frac{1}{45} = \frac{14}{45}

= \frac{14}{45}

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

e x p an d (sin (3 t) + cos (3 t))^{2}

e x p an d ln^{x^{2}} (x) (2 x ln (ln (x)) + \frac{x}{ln ( x )})

s im pl i f y (2 x - 2) (2 x + 2)

s im pl i f y (4 - y i)^{2}