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Mathematics
Mathematics
Problem
Let
x
=
2
t
2
+
1
x=2t^2+1
x
=
2
t
2
+
1
and
y
=
3
t
2
−
4
t
y=3t^2-4t
y
=
3
t
2
−
4
t
. Find
d
y
d
x
\dfrac{dy}{dx}
d
x
d
y
at
t
=
1
t=1
t
=
1
. a)
−
1
2
-\dfrac12
−
2
1
b)
2
2
2
c)
1
2
\dfrac12
2
1
d)
1
1
1
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