How many pairs of poles does a 4-pole motor have?

How many pairs of poles does a 4-pole motor have?

Two

How much does {(1-log6 3) ^ 2 + log6 2 * log6 18} / log6 4 equal? Please write the calculation process,

{(1-log6 3)^2+log6 2*log6 18}/log6 4 =（log6 6-log6 3)^2+log6 2*log6 18/log6 4 =（log6 6/3)^2+log6 2*log6 18/log6 4 =（log6 2)^2+log6 2*log6 18/log6 4 = log6 2（log6 2+log6 18）/log6 4 =log6 2*lo...

Application of mathematical equation solving
There are two people, a and B. A walks 65 meters per minute and B 55 meters per minute. After B walks for six minutes, a chases B from behind. A chases for a few minutes to get to the place 40 meters away from B? (need to make an equation)

It takes X minutes
B: 55 × 6 meters in 6 minutes
So 65x-55x = 55 × 6-40
10x=330-40=290
x=290÷10=29
A: it will take 29 minutes

A kind of color TV used to cost 1800 yuan per set, but now it costs 1200 yuan per set. What's the price reduction? What's the discount?

（1800-1200）/1800=33%
A: the price has been reduced by about 33%, which is equivalent to a 6.7% discount

If a * b = (a + 1) (B + 4) - (a + 2) (B + 3) is specified, please simplify (M + 1) * (n-1) and find the value of the formula when m = 2006 and N = 2005

From the known (M + 1) * (n-1) = (M + 2) * (n + 3) - (M + 3) * (n + 2) = M-N
So: when m = 2006, n = 2005, the original formula is 1

a+b+c=0
Solving the value of a ^ 2 + B ^ 2 + C ^ 2-ab-ac-bc

∵a+b+c=0∴（a+b+c）²=0a²+b²+c²+2ab+2ac+2bc=0∴a²+b²+c²=-2ab-2ac-2bca(a+b+c)=0 b(a+b+c)=0 c(a+b+c)=0a²+b²+c²+3ab+3ac+3bc=0∴a²+b²+c²=-3...

If a commodity is sold at 80% of the marked price, it will get a profit of 960 yuan. If it is sold at 80% of the marked price, it will lose 832 yuan compared with the cost price. What is the cost price of this commodity?

(960 + 832) △ 1-80% = 1792 △ 20% = 8960 (yuan) 8960-960 = 8000 (yuan) a: the cost price of this commodity is 8000 yuan

9 makes up a number divisible by 11

0+1+...+9=45
If the sum of odd digits cannot be equal to the sum of even digits, the difference is 11
(45+11)/2=28
45-28=17=0+1+2+5+9
Many, such as 98572 61403

Several mathematical judgment questions
1. If the numerator and denominator are different, the true fraction must be the simplest fraction ()
2. The ratio of the internal angles of a triangle is 1:2:6. This triangle is an obtuse triangle ()
3. If the bottom of a triangle is reduced by 8 times and the height is increased by 4 times, the area will be reduced by 8 times ()
4. If the ratio of number a to number B is 1:3, and the sum of number a and number B is 12, then the number a is 3 ()
5. The difference between the maximum factor and the minimum multiple of a non-zero natural number is 0 ()

1. If the numerator and denominator are different, the true fraction must be the simplest fraction (wrong)
2. The ratio of the internal angles of a triangle is 1:2:6. This triangle is an obtuse triangle (pair)
3. If the bottom of a triangle is reduced by 8 times and the height is increased by 4 times, the area will be reduced by 8 times (wrong)
4. If the ratio of number a to number B is 1:3, and the sum of number a and number B is 12, then the number a is 3
5. The difference between the maximum factor and the minimum multiple of a non-zero natural number is 0
If you don't understand this question, you can ask,

The vertex a (3, - 1), C (2, - 3) and point D of parallelogram ABCD move on the circle x ^ 2 + y ^ 2-2x + 2Y = 2. Find the trajectory equation of point P in ab

Because the intersection of the diagonals of the parallelogram bisects two diagonals, here let the intersection be e (x1, Y1), so there are: X1 = 1 / 2 (3 + 2) Y1 = 1 / 2 (- 1-3) the solution is X1 = 2.5, Y1 = - 2, that is e (2.5, - 2); X ^ 2 + y ^ 2-2x + 2Y = 2 (x-1) &# 178; + (y + 1) &# 178; = 4 let the coordinates of point d be (x, y), and the coordinates of point B be (X2, Y2)