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受欢迎的代数 >

化简 (8i)^2

解答

化简

(8 i)^{2}

解答

- 64

求解步骤

(8 i)^{2}

使用指数法则:

(a \cdot b)^{n} = a^{n} b^{n}

(8 i)^{2} = 8^{2} i^{2}

= 8^{2} i^{2}

8^{2} = 64

= 64 i^{2}

使用虚数运算法则:

i^{2} = - 1

= 64 (- 1)

数字相乘:

64 (- 1) = - 64

= - 64

流行的例子

3 x^{2} - 4 x - 2 = 0

2(x-4)+3x-x^2=3

2 (x - 4) + 3 x - x^{2} = 3

-8<= 1-3(x-2)<13

- 8 \leq 1 - 3 (x - 2) < 13

(1-0.537)= x/(\frac{500){0.55}+100.02}

(1 - 0.537) = \frac{x}{\frac{500}{0.55} + 100.02}

x - 2 < 12