展开 sqrt(0-10)

解答

展开

0 - 10

10 i

求解步骤

0 - 10

数字相减:

0 - 10 = - 10

= - 10

使用根式运算法则:

- a = - 1 a

- 10 = - 1 10

= - 1 10

使用虚数运算法则:

- 1 = i

= 10 i

s im pl i f y (- 3 + 2 i)^{5}

s im pl i f y (8 - (x - 2)^{2} + y^{2})^{2}

e x p an d + (2 x + 3 y) d y

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

e x p an d \frac{120 ( - x ^{2} + 4 )}{( x ^{2} + x + 4 ) ^{2}}