Math Problem Statement
There is a system where Ax=B and A=[-1,2,3,6;0,1,-3,2;4,6,5,0;9,-2,-3,4] and x = [x1;x2;x3;x4] and B=[3;4;-2;-1]. There is also a given function: arcctg(sqrt(x))+(sqrt(4+x^2))^3 *y+2+sqrt(x)+cos(x)-(x^2 +1)*y = ln(1+sqrt(x)). Write in an open way y=y(x) and calculate the value of the function y(x4). Provide the answer with four decimal places.
Solution
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Math Problem Analysis
Mathematical Concepts
Linear Algebra
Trigonometric Functions
Logarithmic Functions
Formulas
Ax = B (System of linear equations)
y = (ln(1 + sqrt(x)) - arcctg(sqrt(x)) - 2 - sqrt(x) - cos(x)) / ((sqrt(4 + x^2))^3 - (x^2 + 1))
Theorems
Arcctangent Function (arcctg)
Matrix Inversion for Solving Linear Systems
Properties of Logarithms and Trigonometric Functions
Suitable Grade Level
Undergraduate Math or Advanced High School
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