CPM Homework Help : PC3 Problem 10-134

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10-134.

For each of the following sets of parametric equations, write an equation relating $x$ and $y$ .

$x(t) = \cos(t) \\ y(t) = \sin(t)$
Hint (a):
$\cos^2(t) + \sin^2(t) = 1$

$x(t) = \cos(t^3)\\ y(t) = \sin(t^3)$
Hint (b):
Let $u = t^{3}$ .

$x(t) = t^4 − 2t^2 \\y(t) = t^2$
Hint (c):
$x = (t^2)^2 − 2(t^2)$

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