16 • (x^2 + 2y^4) • (x^2 - 2y^4)
Answer:
C i think
Step-by-step explanation:
you do 13x90 then divide by 5x
Step-by-step explanation:
The rule for a 90 degree counterclockwise is
(x,y) -> (-y,x)
so
C(-1,2) -> C'(-2,-1)
D(3,5) -> D'(-5,3)
E(1,2) -> E'(-2,1)