pure co-geom
2010-12-13 12:21 am
( a) Show that the equation of the chord of the parabola y^2=4ax bisected at (h,k) is
2ax=ky+ (k^2-2ah)=0
( b) Find the locus of the mid-pts of the chords of the parabola y^2=4ax which touches the parabola y^2+4ax=0
(ans: 3y^2=4ax)
(b) part 唔識=(
回答 (1)
2010-12-13 12:50 am
收錄日期: 2021-04-23 23:22:13
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