amaths

2007-06-03 8:04 am
the equation of a curve is given by X= 3t/ (1+t^3) and y= (3t^2) /(1+t^3) where t is parameter

1, show that (3/2,3/2) is a point on the curve and find the value of t corresponding to this pt.

2, show that the equation of the curve can be represented by X^3+y^3=3xy

回答 (1)

2007-06-03 8:16 am
✔ 最佳答案
1)
t = 1
put t = 1 into x = 3t/ (1+t^3) and y = (3t^2) /(1+t^3)
x = 3/2 and y = 3/2
so, completed

2)
y/x = t ------- (1)
put (1) into x = 3t/ (1+t^3)
and simply and rearrange,
you can get the answer


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