filmov
tv
'Prove that the points (2,-1), (0,2), (2,3) and (4,0) are the coordinates other vertices of a
Показать описание
"Prove that the points (2,-1), (0,2), (2,3) and (4,0) are the
coordinates other vertices of a parallelogram and find the angle between its
diagonals."
coordinates other vertices of a parallelogram and find the angle between its
diagonals."