Given that a and B are reciprocal to each other, the result of dividing 10 / 10 of a by 10 / 10 of B is

Given that a and B are reciprocal to each other, the result of dividing 10 / 10 of a by 10 / 10 of B is

A and B are reciprocal, that is ab = 1
Ten of a divided by ten of B = ten of a multiplied by ten of B
That is (10 / a) * (10 / b) = 100 / (AB) = 100

Given that the difference between the polynomial 2x + my-12 and the polynomial nx-3y + 6 does not contain x, y, find the value of M + N + Mn

Poems about wine writing sorrow

Farewell letter to Uncle Yun Li Bai at xiexianlou, Xuanzhou
If you abandon me, you can't leave yesterday's day. If you disturb my heart, you will be worried about today's day
Penglai article Jian'an bone, in the middle of the small Xie Qingfa. All the heart Yixing Zhuang, think of flying, want to go to the sky to catch the moon. Draw a knife to cut off water, water flow more, raise a glass to relieve worry more. Life in the world is not satisfactory, the Ming Dynasty sent out to make boat
Wei Cheng Qu Wang Wei
The rain and dust in Weicheng are light, and the green willows in the guest house are fresh. I urge you to have a glass of wine and leave Yangguan in the West
The tulip of Lanling wine, the amber light of jade bowl
But make host can drunk guest, do not know where is foreign land
Li Bai drinking alone under the moon
A pot of wine among flowers, drinking alone, no blind date
Raise a glass to invite the moon, the shadow into three
Since the moon does not know how to drink, the shadow follows me
Temporary companion moon will shadow, xingle must reach spring
I am wandering in the moon, I dance in disorder
Make friends when you wake up, and disperse when you are drunk
Forever knot ruthless travel, phase period Miao Yunhan
Zhongjing Bachu Zhangji
In the past, Li Yinghuan was picked up from the top, and the sun was full of fairies and the boat was drunk
Floating clouds are similar, and the past is like a dream. Today, when the sail city goes down, the autumn wind looks back and tears dry

The square of the quadratic power of 4 m - (M + n)

Factorization using the square difference formula
4m²-（m+n）²
=（2m）²-（m+n）²
=（2m-m-n）（2m+m+n）
=（m-n）（3m+n）

999 and 8 / 9 divided by (- 1 and 1 / 9)

999 and 8 / 9 divided by (- 1 and 1 / 9)
=(999 + 8 / 9) / (- 10 / 9)
=(1000-1 / 9) × (- 9 / 10)
=-[9 / 1000 × 10-1 / 9 × 9 / 10]
=-[900-1 / 10]
=-899 and 9 / 10

Given that circle a: (x + 3) 2 + y2 = 100, a certain point B (3, 0) in circle a, moving circle P passes through point B and is tangent to circle a, the trajectory equation of circle center P is obtained

Let P (x, y) be the center of the moving circle, and R be the radius. The center of ⊙ A is a (- 3, 0), and the radius is 10. Because the moving circle passes through point B, r = Pb. If the moving circle P is inscribed with ⊙ a, then PA = 10-r = 10-pb, that is PA + Pb = 10 & nbsp; According to the results of (3) and (4), we get that | PA + Pb | = 10 | ab | = 6, so the trajectory of point P is an ellipse focusing on a and B, and a = 5, C = 3, so B2 = a2-c2 = 16, so the equation of the center of the circle is X225 + y216 = 1

A year less than 30 days to guess a word

Belly (30 days a year, November)

What is 9 + 11 × 1 / 4

=36／4+11／4=47／4

Simple calculation: 1.62 times 1.73 minus 1.62 times 0.73
What we want is speed and accuracy. 10 points will be added if it is fast and accurate

1.62×1.73－1.62×0.73
＝1.62×﹙1.73－0.73﹚
＝1.62×1
＝1.62.

Factorization-2x ^ 2 + ax-12

=2(ax-x^2-6)
=~~
No more