A.點(diǎn)2P和點(diǎn)P都在同一條橢圓曲線上 B.2P是點(diǎn)P的二次方 C.2P=P+P D.2P+O=2P
A.(-3,-10) B.(3,-10) C.(-3,10) D.(3,13)
A.(-18,-3) B.(18,-3) C.(-18,3) D.(18,20)