How to use matlab to solve binary quadratic equations: ((x-0.5) ^ 2) / A ^ 2-y ^ 2 / b ^ 2 = 1, ((y-0.5) ^ 2) / C ^ 2-x ^ 2 / D ^ 2 = 1 Where a, B, C and D are constants and X and y are unknowns The results require a, B, C, D, x, y range is greater than 0.5. I have not used Matlab, please write down the specific steps!

Syms a B C D x y; solve ('(x-0.5) ^ 2 / A ^ 2-y ^ 2 / b ^ 2 = 1', '(y-0.5) ^ 2 / C ^ 2-x ^ 2 / D ^ 2 = 1') copy and paste the above command into matlab command windows

For any differentiable function f (x) on R, if XF "(x) ≥ 0, then the relation between F (- 1) + F (1) and 2F (0) is

The following is the complete proof method: using Taylor formula: F (x) = f (X.) + F '(X.) + F' '(X-X.) / 2! * (X-X.) ^ 2, + F' '' (X.) / 3! * (X-X.) ^ 3 + +F (n) (X.) / N! * (X-X.) ^ n + RN (x) so f (x) = f (0) + F '(0) x + F' '(0) x & sup2 / 2 + RN (x) f (1) = f (0) +

Let a be an antisymmetric matrix and B be a symmetric matrix. It is proved that: (1) a & # 178; is a symmetric matrix and (2) ab-ba is a symmetric matrix

(1)
(A²)^T
=(A^T)²
=（-A）²
=A²
therefore
A is a symmetric matrix;
（2）
(AB-BA)^T
=(AB)^T-(BA)^T
=B^TA^T-A^TB^T
=B*(-A)-(-A)B
=AB-BA
therefore
Ab-ba is a symmetric matrix

Is ten dollars singular or plural

Do odd numbers
eg.Ten dollars is enough for me to buy the book.

Solving the equation AX + B = CX + D
Do me a favor

The result of the transfer is as follows:
ax-cx=d-b
(a-c)x=d-b①
When a ≠ C, a-c ≠ 0, both sides of the formula are divided by (A-C) to get the following result:
x=(d-b)/(a-c)
When a = C, a-c = 0, the formula can be changed to: 0 = D-B,
Therefore, if the term d = B, X takes any real number, and the original formula holds. If the term B ≠ D, the original formula has no solution

The meaning of the only one of and only one of and the singular and plural forms of the predicate are explained in detail with examples

The only one of you is the winner. The only one of you is the winner

In △ ABC, ab = 5, BC = 6, AC = 8, then the shape of △ ABC is______ ．

∵ AB = C = 5, BC = a = 6, AC = b = 8, i.e. C < a < B, ∵ C < a < B, i.e. B is the largest angle of a triangle. According to the cosine theorem, CoSb = A2 + C2 − b22ac = 36 + 25 − 6460 = - 120 < 0, and B is the inner angle of a triangle, ∵ B is an obtuse angle, then the shape of △ ABC is an obtuse angle triangle

Translate phrases in English
Bless sb. For sth

wish/bless sb. for sth.

Given the inscribed triangle ABC of circle x ^ 2 + y ^ 2 = 25, the coordinates of point a are (3,4), and the coordinates of center of gravity g are (5 / 3.2)

Let B (x1, Y1) C (X2, Y2)
Then 3 + X1 + x2 = 5 and X1 + x2 = 2
4+y1+y2=6 y1+y2=2
Substituting point B into the circle equation, X1 ^ 2 + Y1 ^ 2 = 25
Point C, X2 ^ 2 + Y2 ^ 2 = 25
(2-x1)^2+(2-y1)^2=25
x1^2+y1^2-4x1-4y1-8=25
And ∵ X1 ^ 2 + Y1 ^ 2 = 25
∴x1+y1=-2
Similarly, we can get x2 + y2 = - 2
That is, the linear equation of BC is x + y + 2 = 0

How to say holiday in English

vacation
holiday