Eand f are sets of real numbers defined as follows. e={v | v ≤ 2} f={v | v > 6} write e ∪ f and e ∩ f using interval notation. if the set is empty, write ∅. e ∪ f = ? e ∩ f = ?

Below.

Step-by-step explanation:

E ∪ F = (-∞, -2] or (6, ∞)

E ∩ F =  ∅.

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.