#1 Amaths. 一問
A straight line L1 : y=mx+c, where m and c is constants, makes an angle of 45 with the L2 : 17x-7y+14=0
(a) Find the 2 values of m
(b) If the distance from the point (1,2) to L1 is 5 and m takes thr greater of the caluse obtained in (a), find the two values of c.

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1/18 21:38
小軒

#2
[quote]原帖由 [i]小軒[/i] 於 2008-1-18 09:38 PM 發表
A straight line L1 : y=mx+c, where m and c is constants, ma ..

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