Explain why angle “a” must be 135

Ineed in figuring out this problem.

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

The equation |pl = 2 represents the total number of points that can be earned or lost during one turn of a game. which best describes how many points can be earned or lost during one turn? o o -2 2 oor 2 -2 or 2 o