Function whose jump (non-negative difference of `LHL and RHL` ) of discontinuity is greater than or equal to one. is/are

prove that ,Function f(x) = {{:((e^(1//x)+1)/(e^(1//x)-1)",",x lt 0),((1-cos x)/(x)",",x gt 0):} jump (non-negative difference of LHL and RHL) of discontinuity is greater than or equal to one.

An angle is greater than 45 .Is its complementary angle greater than 45 or equal to 45 or less than 45?

The negative of the statement ''7 is greater than 8'' is

The negative of the statement ''7 is greater than 8'' is

The probability of an event is greater than or equal to ____ and less than or equal to _____

Write two negative integers whose difference is 7.

An angle is greater than 45^@ . Is its complementary angle greater than 45^@ or equal to 45^@ or less than 45^@ ?

Write two negative integers greater than -31.

(a) Write four negative integers greater than -20.