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Mathematical calculation：
Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 6 questions will be solved this time.Among them
☆1 inequalities
☆1 equations
☆1 mathematical statistics
☆1 integer calculations
☆1 calculations of prime factor
☆1 convert the decimals to fractions
[1/6 Integer column vertical calculation]
Question type: Integer addition
Original question: 1+2
Solution:
1+2 = 3
Column vertical calculation:
[ 2/6 Equation]
Work: Find the solution of equation x+2 = 0 .
Question type: Equation
Solution:Original question:
Transposition :
Combine the items on the right of the equation:
This is the solution of the equation.
This is the solution of the equation.
[ 3/6Inequality]
Assignment:Find the solution set of inequality x+2 >0 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality：
x + 2 >0 (1)
From inequality(1)：
x ＞ -2
The final solution set is :
x ＞ -2
[4/6 Digtal analysis]
Work：Break 175 into prime factors.
Question type: Resolving prime factor
Solution:
175=5*5*7
*Note: 175 has 3 prime factors.
[ 5/6 data statistics ]
Work: Please make statistics on the following data: 43,61 。
Question type: data statistics
Total data：2
The sum：104
Average value：52
Variance：81
Standard deviation：9
*Note: Totally 5 items are counted.
[ 6/6 Digital analysis ]
Work: Convert decimal 0.739 to fractional form.
Question type: Convert decimal to fraction
Solution:
*Note: Convert finite decimal to fraction.
☆1 inequalities
☆1 equations
☆1 mathematical statistics
☆1 integer calculations
☆1 calculations of prime factor
☆1 convert the decimals to fractions
[1/6 Integer column vertical calculation]
Question type: Integer addition
Original question: 1+2
Solution:
1+2 = 3
Column vertical calculation:
| 1 | |||
| ➕ | 2 | ||
| 3 | |||
[ 2/6 Equation]
Work: Find the solution of equation x+2 = 0 .
Question type: Equation
Solution:Original question:
| x | + | 2 | = | 0 |
Transposition :
| x | = | 0 | − | 2 |
Combine the items on the right of the equation:
| x | = | - | 2 |
This is the solution of the equation.
[ 3/6Inequality]
Assignment:Find the solution set of inequality x+2 >0 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality：
x + 2 >0 (1)
From inequality(1)：
x ＞ -2
The final solution set is :
x ＞ -2
[4/6 Digtal analysis]
Work：Break 175 into prime factors.
Question type: Resolving prime factor
Solution:
175=5*5*7
*Note: 175 has 3 prime factors.
[ 5/6 data statistics ]
Work: Please make statistics on the following data: 43,61 。
Question type: data statistics
Total data：2
The sum：104
Average value：52
Variance：81
Standard deviation：9
*Note: Totally 5 items are counted.
[ 6/6 Digital analysis ]
Work: Convert decimal 0.739 to fractional form.
Question type: Convert decimal to fraction
Solution:
| 0.739= | 739 1000 |
*Note: Convert finite decimal to fraction.