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Problem
Problem
If the normal to
y
=
f
(
x
)
y = f(x)
y
=
f
(
x
)
at
(
0
,
0
)
(0, 0)
(
0
,
0
)
is given by
y
−
x
=
0
y - x = 0
y
−
x
=
0
, then
lim
x
→
0
x
2
f
(
x
2
)
−
20
f
(
9
x
2
)
+
2
f
(
99
x
2
)
\lim_{x \to 0} \frac{x^2}{f(x^2) - 20f(9x^2) + 2f(99x^2)}
lim
x
→
0
f
(
x
2
)
−
20
f
(
9
x
2
)
+
2
f
(
99
x
2
)
x
2
, is a. 1/19 b.
−
1
/
19
-1/19
−
1/19
c. 1/2 d. does not exist
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