Skip to content
Competitive Stats
Q158Section III (Statistics)158 of 180

Quadratic forms — checking positive definiteness via leading minors

Corresponding to the three variables X1,X2,X3X_1,X_2,X_3 the quadrate form X12+2X22+4X32−X1X2+X1X3X_1^2+2X_2^2+4X_3^2-X_1X_2+X_1X_3 is:

Options

Pick an option to check your answer.