Yahoo Answers: Answers and Comments for SUPER URGENT CALCULUS QUESTIONS! [數學]
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From Anonymous
enUS
Mon, 19 May 2008 10:06:07 +0000
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Yahoo Answers: Answers and Comments for SUPER URGENT CALCULUS QUESTIONS! [數學]
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https://answers.yahoo.com/question/index?qid=20080519000051KK00486
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From Chui Ling: 1. the line perpendicular to y=3 is x=2
sinc...
https://answers.yahoo.com/question/index?qid=20080519000051KK00486
https://answers.yahoo.com/question/index?qid=20080519000051KK00486
Mon, 19 May 2008 11:56:41 +0000
1. the line perpendicular to y=3 is x=2
since the only thing perpendicular to y is x
and xcoordinate of the point is 2
2. (ya^1/2)/(xa) = 1/2a^−1/2
(ya^1/2) = (1/2a^−1/2)(xa)
(ya^1/2) = 1/2 (xa) a^(−1/2)
(ya^1/2) = 1/2a^(−1/2) x1/2a^(1/2)
y= 1/2a^(−1/2) x+1/2a^(1/2)
3. curve y=√(ax) passes through the point (p, q)
so √(ap) = q
3√(ap)−2 = 3q2
so curve y=3√(ax)−2 passes through the point (p, 3q2 )