Mathematics
Senior High
題目改成藍色的字 要怎麼解
2
m
3. 若x²+y+2mx+4y+2m²+2m-4=0的圖形為一圓,則:
(1)m的範圍為【
4 or 2
2】。(20分)
(2)此圓的半徑最大為【
】。(15分)
若圖形為一點,則此點坐標為
2 h
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