Free thyroxine (free T4) tests are used to help evaluate thyroid function and diagnose thyroid diseases, including hyperthyroidism and hypothyroidism, usually after discovering that the thyroid stimulating hormone (TSH) level is abnormal. T4 and another hormone called triiodothyronine (T3) are produced by the thyroid gland.
[When the determinant of a matrix is nonzero, linear system it represents is linearly independent]. When the determinant of a matrix is zero, it rows are linearly dependent vectors, and its columns are linearly dependent vectors.
This is a tutorial on how to calculate the determinant of a 2 by 2 matrix and that of a 3 by 3 matrix. Check answers using these online calculators to calculate the determinant of a 3 by 3 Matrix and the determinant of 2 by 2 Matrix. Online Step by Step Calculus Calculators and SolversNew !Factor Quadratic Expressions-Step by Step CalculatorNew ! Step by Step Calculator to Find Domain of a Function New !eterminant of a 2 by 2 Matrix. The determinant of the 2 by 2 matrix A is a scalar given by Example 1: Find the determinant of the 2 by 2 matrix A given by Solution det(A) = -2*(1/2) - 5*3 = -16 Check your answer using this calculator of determinant of a 2 by 2 Matrix.