On the number axis, points a and B represent rational numbers a and B respectively, and the origin o is just the midpoint of AB, then the value of (a + b) 100 + (A / b) 2008 is (a + b) 100 (A / b) 2008

On the number axis, points a and B represent rational numbers a and B respectively, and the origin o is just the midpoint of AB, then the value of (a + b) 100 + (A / b) 2008 is (a + b) 100 (A / b) 2008

a+b=0;
a/b=-1
(a + b) 100 + (A / b) 2008 = 0 (100 power) + - 1 (2008 power) = 1
On the number axis, points a and B represent rational numbers a and B respectively, and the origin o is just the midpoint of line ab. the correct formula is that a + B is greater than 0, A-B is greater than 0, a multiplied by B is greater than 0
If the far point O is the key point of line AB, then a and B are opposite to each other
It is obviously wrong to have a + B = 0
When a > 0, A-B > 0; when b > 0, A-B > 0 does not hold
a. B is not the same sign, so a × B0 is not right
On the number axis, points a and B represent rational numbers a and B respectively, and the origin o is just the midpoint of line AB, then the value of algebraic formula 2010 (a + b) + 2011B / A is equal to________ .
A + B = 0, B / a = - 1, so the answer is - 2011
If a point on the number axis is known to represent a number of 3, then the distance from the point to the origin must be 3 unit lengths
This sentence is right or wrong, think about it
Wrong. Because: the title says "three unit lengths", but it doesn't say how much each unit length is. Generally, one unit length means 1. It's easy for ordinary people to think so. In fact, it's wrong. What if one unit length means other numbers? The title says "it must be three length units", so this question is wrong
A: I don't think it's right.
There is no definition of "unit length" in the proposition, which leads to ambiguity.
"Given that a point on the number axis represents a number of 3, the distance from the point to the origin must be 3 unit lengths."
-----Yes!
Fourth grade oral arithmetic (with addition, subtraction, multiplication and division)
120×2= 90÷30= 270÷30= 270×30= 84÷21= 76÷9= 66÷7= 100－54= 123＋15= 360÷4= 55÷5= 32×6= 7000÷70＝ 200÷40＝ 180÷30= 240÷40= 35×2= 140×7= 13×6= 280×3= 350×2= 50×11= 250×6= 7200+900= 4...
Monotone increasing interval of function y = 1-sin2x (x ∈ R)
Let u = sin2x, then y = 1 = sin2x = 1-u, y is the decreasing function of U,
And because the monotone decreasing interval of u = six2x is [π / 4 + K π, 3 π / 4 + K π], (K ∈ z)
So the monotone increasing interval of y = 1-sin2x (x ∈ R) is [π / 4 + K π, 3 π / 4 + K π], (K ∈ z)
What are the symbols in the heat formula of junior high school physics?
The physical quantity of q = cm * t
The correct writing is q = cm △ t
Q: Heat, in J
C: Specific heat capacity refers to the absorption (or release) of a substance per unit mass by increasing (or decreasing) 1 ℃
The heat of a substance is an attribute of the substance itself, which is only related to the type of substance. The unit is J / (kg. ℃)
The specific heat capacity of water is 4.2 × 10 ^ 3j / (kg. ℃)
Δ T: refers to the change of temperature. If it is endothermic, Δ t = t end-t beginning; if it is exothermic, Δ t = t beginning-t end
In any case, just remember that it's big and small
So the formula for heat can also be written as
Q suction = cm (t end-t beginning)
Q = cm (t beginning - t end)
Q is the unit of heat J;
C represents the specific heat capacity in J / (kg. ℃);
M is the mass of the liquid in kg
T represents the temperature change of liquid, and the unit ℃ should be △ t.
So the unit of the formula band is: Q (J) = C [J / (kg. ℃)] * m (kg) * △ t (℃)
One hundred oral arithmetic problems in grade four of primary school
thank you
78+56= 42+74= 89+23= 61+48= 50+124= 34+69= 73+92= 45+29= 102+74= 26+130=
85+31= 27+82= 36+43= 69=74 = 46+34= 89+45=
143+50 = 78-41= 69+52= 28+43= 52+38=
97 + 23 = 34 +254= 98-23= 59-27= 98-0=
12*2= 45*3= 98 / 7= 121/11= 89-23=
1-0= 9+6= 1+0= 4+4= 7-7=
4+1= 1+8= 6+7= 7+1= 3-2=
2-0= 6+3= 1+7= 1+2= 7-4=
1+9= 1+4= 3+5= 7+8= 9-0=
2-2= 1+7= 8-5= 8-3= 1-0=
2+1= 9+3= 0+6= 3-3= 2-0=
1+4= 5-2= 9-0= 7-2= 8-7=
9+4= 3-0= 0-0= 9-7= 4-0=
8-6= 4+0= 6+9= 2+8= 8-6=
9+6= 6+6= 4+1= 9+0= 5-5=
78+56=134
42+74=116
89+23=112
61+48=109
50+124=174
34+69=103
73+92=165
45+29=74
102+74=176
26+130=156
85+31=116
27+82=109
36+43=79
69=74 = ???
... unfold
78+56=134
42+74=116
89+23=112
61+48=109
50+124=174
34+69=103
73+92=165
45+29=74
102+74=176
26+130=156
85+31=116
27+82=109
36+43=79
69=74 = ???
46+34=80
89+45=134
143+50 =193
78-41=37
69+52=121
28+43=71
52+38=90
97 + 23 =120
34 +254=288
98-23=75
59-27=32
98-0=98
12*2=24
45*3=135
98 / 7=14
121/11=11
89-23=66
1-0=0
9+6=15
1+0=0
4+4=8
7-7=0
4+1=5
1+8=9
6+7=13
7+1=8
3-2=1
2-0=2
6+3=9
1+7=8
1+2=3
7-4=3
1+9=10
1+4=5
3+5=8
7+8=15
9-0=9
2-2=0
1+7=8 8-5=3
8-3=5
1-0=0
2+1=3
9+3=12
0+6=6
3-3=0
2-0=2
1+4=5
5-2=3
9-0=9
7-2=5
8-7=1
9+4=13
3-0=3
0-0=0
9-7=2
4-0=4
8-6=2
4+0=4
6+9=15
2+8=10
8-6=2
9+6=15
6+6=12
4+1=5
9+0=9
5-5 = 0 ﹣ put away
78+56= 42+74= 89+23= 61+48= 50+124= 34+69= 73+92= 45+29= 102+74= 26+130=
85+31= 27+82= 36+43= 69=74 = 46+34= 89+45=
143 + 50 = 78-41 = 69 + 52... Expand
78+56= 42+74= 89+23= 61+48= 50+124= 34+69= 73+92= 45+29= 102+74= 26+130=
85+31= 27+82= 36+43= 69=74 = 46+34= 89+45=
143+50 = 78-41= 69+52= 28+43= 52+38=
97 + 23 = 34 +254= 98-23= 59-27= 98-0=
12*2= 45*3= 98 / 7= 121/11= 89-23=
1-0= 9+6= 1+0= 4+4= 7-7=
4+1= 1+8= 6+7= 7+1= 3-2=
2-0= 6+3= 1+7= 1+2= 7-4=
1+9= 1+4= 3+5= 7+8= 9-0=
2-2= 1+7= 8-5= 8-3= 1-0=
2+1= 9+3= 0+6= 3-3= 2-0=
1+4= 5-2= 9-0= 7-2= 8-7=
9+4= 3-0= 0-0= 9-7= 4-0=
8-6= 4+0= 6+9= 2+8= 8-6=
9+6= 6+6= 4+1= 9+0= 5-5=
5+8= 2+0= 5-3= 6+8= 9-6=
Respondent:
Put it away
The monotone increasing interval of the function y = LG (sin2x + cos2x) is
y=lg[√2sin(2x+π/4)]
When 2x + π / 4 belongs to [- π / 2 + 2K π, π / 2 + 2K π].. K is an integer
That is, X belongs to [- 3 π / 8 + K π, π / 8 + K π]. K is an integer
It's an increasing function
Is there a formula of power = force × speed? Please use the formula of physical letters
P=FV
W=F*v