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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: 1 questions will be solved this time.Among them
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation cosx = 0.900969 .
Question type: Equation
Solution:
The solution of the equation:
x1≈-13.015169 , keep 6 decimal places
x2≈-12.117572 , keep 6 decimal places
x3≈-6.731984 , keep 6 decimal places
x4≈-5.834387 , keep 6 decimal places
x5≈-0.448799 , keep 6 decimal places
x6≈0.448799 , keep 6 decimal places
x7≈5.834387 , keep 6 decimal places
x8≈6.731984 , keep 6 decimal places
x9≈12.117572 , keep 6 decimal places
x10≈13.015169 , keep 6 decimal places
There are 10 solution(s). *Note: Radian.
解程的详细方法请参阅：《方程的解法》