A:more pleased than to come
B:more than pleased to come
C:more pleased to come tha
D:pleased more than to come
读图,回答下列问题.
看拼音写词语。
è yùn
____
zhèn dìng
bào lù
diǎn rán
已知椭圆的两个焦点为F1(﹣ 5 ,0),F2( 5 ,0),M是椭圆上一点,若 MF1→ • MF2→ =0,| MF1→ |•| MF2→ |=8.
方程(x+1)2﹣2(x﹣1)2=6x﹣5的一般形式是____