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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: 4 questions will be solved this time.Among them
☆2 inequalities
☆2 arithmetic calculations
[1/4 Formula]
Work: Calculate the value of equation √√-1 .
Question type: Mathematical calculation
Solution:
√√-1
=√-nan
=nan
Answer:√√-1=
[2/4 Formula]
Work: Calculate the value of equation √-1 .
Question type: Mathematical calculation
Solution:
√-1
=-nan
Answer:√-1=-
[ 3/4Inequality]
Assignment:Find the solution set of inequality x^4 <-1 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality：
x ^ 4 < -1 (1)
From inequality(1)：
The solution set is empty, that is, within the range of real numbers, the inequality will never be established!
The final solution set is :
The solution set is empty,that is, the inequality will never be estatlished within the real number range.
[ 4/4Inequality]
Assignment:Find the solution set of inequality x^2-3x+4 ≥0 .
Question type: Inequality
Solution:
The inequality can be reduced to 1 inequality：
x ^ 2 - 3 * x + 4 ≥0 (1)
From inequality(1)：
x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!
The final solution set is :
x ∈ R (R is all real numbers),that is, in the real number range, the inequality is always established!