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What is the operation law of 89.8 * 99 + 89.8 = 89.8 * (99 + 1)
89.8 * 99 + 89.8 = 89.8 * (99 + 1) is the combination law of multiplication
Plural z = (1 + I) / 2 ^ 0.5
Known z = (1 + I) / 2 ^ 0.5
Then the value of 1 + Z ^ 50 + Z ^ 100 is?
Z=（1+i）/2^0.5
Then z = 2 ^ 0.5 (COS π / 4 + isin π / 4) / 2 ^ 0.5 = cos π / 4 + isin π / 4
According to demover's theorem:
z^50=cos50π/4+isin50π/4=i
z^100=cos100π/4+isin100π/4=-1
be
1+Z^50+Z^100=1+i-1=i
Talk about your understanding of the development law of human society
my favourite sports
My hobby is playing basketball, popular, long, as soon as possible,
Whatever. Hurry up`````
My favorite sport is snooker and Ding Junhui is my favorite player of this sport.My favorite sport is snooker and Ding Junhui is my favorite ...
Calculate the surface area diameter of each cylinder below 12 cm,
6*6*3.14*2+2*6*3.14*16
Enter two positive integers m and N to find their greatest common divisor and least common multiple. (exercise 6.1)
Input two positive integers m and N to find the greatest common divisor and the least common multiple. Use the division method to find the greatest common divisor. Algorithm description: m computes the remainder of n as a, if a is not equal to 0, then M 0) {M 0)}_ cup = m; n_ cup = n; res = m_ cup % n_ cup; while (res != 0) { m_ cup = n_ cup; n_ cup = re...
Given that the three sides of △ ABC are respectively 3,2 + X, 9, and the circumference is even, what is the value of integer x? What is the maximum value of odd circumference?
If 2 + X is less than 12, then x is less than 10; if 3 + 2 + X is greater than 9, then x is greater than 4. Because the perimeter is even. If x is greater than 4 and less than 10, then x = 6, 8, 10. If the perimeter is odd, then x = 9, and the perimeter is 3 + 9 + 2 + 9 = 23
The quotient of the least common multiple of a and B divided by their greatest common divisor is 12, and the difference between a and B is 18?
The quotient of the least common multiple of a and B divided by their greatest common divisor is 12, and the difference between a and B is 18?
12=1*12=3*4
Let the greatest common divisor be X
Then the two numbers are: X, 12x or 3x, 4x
1）12X-X=18
X = 18 / 11 (not integer, rounding off)
2）4X-3X=18
X=18
Therefore, the two numbers are: 18 * 3 = 54, 18 * 4 = 72
What does if ((K1 = = 1) & (K2 = = 1)) mean?
If K1 = 1 and K2 = 1, then execute the following statement
In the last page of junior high school English book, the past tense and past participle table should be translated into Chinese
Irregular verb change table: (& nbsp; original form & nbsp; → & nbsp; past tense & nbsp; → & nbsp; past participle) be (am, is) & nbsp; \
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