May I please receive help

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

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)

Which term applies to agb and dge? a. obtuse b. supplementary c. complementary d. vertical