7 6 2 8 9 1 6 2 is 24 points Space in the middle

7 6 2 8 9 1 6 2 is 24 points Space in the middle

｛（7+6）x2-（8+9）｝x2+6=24
How to calculate 24 points from 3-57-13
There are also 3 4 - 6 10 to calculate 24, which requires three methods
（13*5+7）/3
3. How to calculate 24 points with the four numbers of 5, 7 and 13
24 points
(5*13+7)/3=24
[(5*13)+7]/3=24
(7+5*13)/3=24
[7+(5*13)]/3=24
(7+13*5)/3=24
[7+(13*5)]/3=24
(13*5+7)/3=24
[(13*5)+7]/3=24
10-4-3*(-6)=24
[7-(-5)*13]/3=24
[7-(-13)*5]/3=24
5*13+7)/3=24
[(5*13)+7]/3=24
(7+5*13)/3=24
[7+(5*13)]/3=24
(7+13*5)/3=24
[7+(13*5)]/3=24
(13*5+7)/3=24
Four operations of rational number addition, subtraction, multiplication and division
Help me find 10 questions of rational number addition, subtraction, multiplication and division mixed operation, fast
(1) (-9)-(-13)*5+(-20)/5+(-2)(2) 3+3*13-(-7)/6(3) (-2)/8-8-14*2-13(4) (-7)*(-1)/7+8-7(5) (-11)*4-(-18)/18+1(6) 4+8*(-11)-1/(-3)(7) (-17)*3-6-16/(-18)+2(8) 5/7+8*(-1)-(-8)+5(9) (-1)*(-1)+15/5+...
The square of the negative two of (- 1 / 3) - 16 divided by the third power of (- 2) + (PIE Tan 60 degrees) - the root of (- 2) / 3cos 30 degrees seven
The square of minus two of (- 1 / 3) - 16 divided by the third power of (- 2) + (PIE Tan 60 degrees) - the root of two-thirds 3cos 30 degrees
=9+16÷8+π-√3-√3/2x√3/2
=9+2+π-√3-3/4
=10.25+π-√3
If you don't understand this question, you can ask,
The second semester of junior high school physics people's education press electrical power part of all symbols and instructions
Series circuit current I (a) I = I1 = I2 = The current is equal everywhere, and the series circuit voltage U (V) u = U1 + U2 + The series circuit acts as a voltage divider, and the series circuit resistance R (Ω) r = R1 + R2 + Parallel circuit current I (a) I = I1 + I2 + The main current is equal to the sum of the branch currents
P (electrical power) electrical power equals voltage times current, P = UI
W (electric work) electric work is equal to electric power times time w = Pt
R (resistance) resistance is equal to voltage divided by current R = u △ I
U (voltage)
I (current
P=UI W=PT P=I2R P=U2/R
There is no important formula about electricity in grade two. Just remember Ohm's law and the right and left hand judgment method of current.
Rational number addition, subtraction, multiplication, division, power operation exercises with answers
Rational addition, subtraction, multiplication, division, power operation exercise with steps and answers, 60, the best and the following example is almost the same, on the 5th, OK, give more money
3+2^2×（-1/5）
Original formula = 3 + 4 × (- 1 / 5)
=3-4/5
=11/5
3+2^2×（-1/5）
Original formula = 3 + 4 × (- 1 / 5)
=3-4/5
=11/5
18-6÷（-2）×（-1/3）
Original formula = 18 - (- 3) × (- 1 / 3)
=18-1
=17
（-3）^2×[-2/3+（-5/9）]
Original formula = 9 × (- 11 / 9)
=-11
8+（-3）^2×（-2）
Original formula = 8 + 9 × (- 2)
=8-18
=-10
100÷（-2）^2-（-2）÷（-2/3）
Original formula = 100 △ 4-3
=25-3
=22
36×（1/2-1/3)^2
Original formula = 36 × (1 / 6) ^ 2
=36×（1/36）
=1
12.7÷（-8/19）×0
The original formula is 0
4×（-3）^2+6
Original formula = 4 × 9 + 6
=36+6
=42
（-3/4）×（-8+2/3-1/3)
Original formula = (- 3 / 4) × (- 8 + 1 / 3)
=（-3/4）×（-23/3)
=23/4
（-2）^3-13÷（-1/2）
Original formula = (- 8) - (- 26)
=18
0-2^3÷（-4）^3-1/8
Original formula = 0-8 ÷ (- 64) - 1 / 8
=0+1/8-1/8
=0
(-2)^3×0.5-（-1.6）^2÷(-2)^2
Original formula = (- 8) × (1 / 2) - (- 8 / 5) ^ 2 △ 4
=（-4）-（64/25）÷4
=（-4）-16/25
=-116/25
(-3/2)×[（-2/3）^2-2]
Original formula = (- 3 / 2) × (4 / 9-2)
=（-3/2）×（-14/9）
=7/3
[(-3)^2-(-5)^2]÷（-2）
Original formula = (9-25) / (- 2)
=（-16）÷（-2）
=8
16÷（-2）^3-（-1/8）×（-4）
Original formula = 16 △ (- 8) - 1 / 2
=-2-1/2
=-5/2
It is known that y = loga (3-ax) is a decreasing function of X on [0,2], and the value range of a is obtained
∵ a ＞ 0 and a ≠ 1, t = 3-ax is a decreasing function. According to the meaning of a ＞ 1 and T = 3-ax, there should be t ＞ 0, 3-2a ＞ 0 on [0, 2]. Therefore, 1 ＜ a ＜ 32
In physics, what is power represented by? What is its unit? What is the abbreviation? What is the symbol? It is often used in engineering technology
Power unit: Watt; abbreviated as watt; unit symbol is w, P is the symbol of quantity
Should the sign of the moving quantity be different from that of the unit sign? The unit sign, such as the distance, is m, that is, the meter, and the sign of the quantity is s
P is power
Unit Watt
Short for tile
The symbol is w
P
Unit Watt
Short for tile
The symbol is w
Take it
P. Represents power
Unit: Watt
Short for. Wa
The symbol is. W
What else do you often do in technical engineering?
Operation exercises of rational number addition, subtraction, multiplication and division
60 calculation questions including addition, subtraction, multiplication, division and power (positive and negative)
There must be at least three operations in a problem, such as (addition, multiplication, Division)
The answer is the best,
(it's better to work out as an integer)
(1) (-9)-(-13)+(-20)+(-2) (2) 3+13-(-7)/6 (3) (-2)-8-14-13 (4) (-7)×(-1)/7+8 (5) (-11)×4-(-18)/18 (6) 4+(-11)-1/(-3) (7) (-17)-6-16/(-18) (8) 5/7+(-1)-(-8) (9) (-1)×(-1)+15+1 (10) 3-(-5)×3/(-15) (...