1 If A7x5 is a coefficient matrix how many unknown variables system of linear equation has 5 2 When it is possible to say that det A is equal 0 without any calculation If three rows are equal If all elements in one column are equal to 0 If we have diagonal matrix 3 What are the properties for bounden function f x f x A f x B bounded function always has limit not all bounded functions have limit when z 7 12 35 4 If lim f x 3 and lim 1 1 removable breakpoint first type breakpoint 6 second type breakpoint function is continuous at point ro f x what type of breakpoint to is 5 Which point s are critical points Points where function is equal zero or does not exists Points where function s derivative is equal zero or does not exists Points where function s second order derivative is equal zero or does not exists Extreme points Inflection points