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Jun
23
comment How can I get the exact real solution of this equation?
Perhaps about my English, therefore my question is not clearly. My question is "How many solutions when I solve the equation Sqrt[x] + Sqrt[1 - x^2] == Sqrt[2 - 3 x - 4 x^2] in the real domain?
Jun
23
comment How can I get the exact real solution of this equation?
I have just online. Thank you four your answer.
Jun
23
accepted How can I get the exact real solution of this equation?
Jun
23
comment How can I get the exact real solution of this equation?
I used Solve[Sqrt[x] + Sqrt[1 - x^2] == Sqrt[2 - 3 x - 4 x^2], x, Reals] // ToRadicals, then I got one real solution.
Jun
23
comment How can I get the exact real solution of this equation?
@MichaelE2 I use Solve[Sqrt[x] + Sqrt[1 - x^2] == Sqrt[2 - 3 x - 4 x^2], x, Reals] // ToRadicals and received one real solution. Thank you.
Jun
23
revised How can I get the exact real solution of this equation?
added 109 characters in body
Jun
23
comment How can I get the exact real solution of this equation?
@Artes With Maple, I received one real solution. For me, the given equation has only one real solution.
Jun
23
comment How can I get the exact real solution of this equation?
@belisarius and @Algohi, with -1 - Sqrt[2], the Sqrt[-1 - Sqrt[2]]is not identified.
Jun
23
asked How can I get the exact real solution of this equation?
May
26
awarded  Civic Duty
Apr
11
revised How can I select two lists from a list of lists so that I receive the system of equations has only rational solutions?
added 1 characters in body; edited title
Apr
11
asked How can I select two lists from a list of lists so that I receive the system of equations has only rational solutions?
Mar
23
accepted Reduce with Integer domain, but receive a rational solution
Mar
6
comment How to find the complex number has least and greatest modul satisfying a given condition?
No. But I think, the solution does not exactly.
Mar
5
accepted How to find the complex number has least and greatest modul satisfying a given condition?
Mar
5
asked How to find the complex number has least and greatest modul satisfying a given condition?
Feb
24
comment How do I replace a variable in a polynomial?
see mathematica.stackexchange.com/questions/42121/…
Feb
19
awarded  Popular Question
Feb
17
comment How to avoid CopyTensor in CompiledFunctions?
@ Dao Trinh. Năm sau kỉ niệm 20 năm thành lập trường. Một số cựu học sinh thành lập học bổng mang tên Lương Thế Vinh. Bạn vào trang wew của trường để biết thêm thông tin. Sẽ có lời ngỏ của thầy Trần Anh Dũng, Hiệu trưởng nhà trường.
Feb
16
comment How to avoid CopyTensor in CompiledFunctions?
TRINH Tôi là giáo viên. Trường LTV sắp xây đó bạn. Cuối tháng Năm này là đập trường đó. Bạn học khoá bao nhiêu? Lớp chuyên gì?