你能帮帮他们吗
精彩回答
已知复数z1=3-4i,z2=1+i则复数 z1²/ z2 对应的点在第 ______象限.
1年前
Now he is ___ artist. 1 have known him since he was ___ one-year-old boy.
1年前
已知:如图,在ΔABC中,BD、CE分别平分∠ABC、∠ACB,且BD、CE交于点O,过O作OP⊥BC于P,OM⊥AB于M,ON⊥AC于N,则OP、OM、ON的大小关系为____________.
1年前
1年前
Imagine the following scene: on the grasslands, an elephant stands under an umbrella-like tree.
1年前