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Mathematics
Mathematics
Problem
Let
f
(
x
)
f(x)
f
(
x
)
be a differentiable function and
∣
f
′
(
x
)
∣
≤
2
|f'(x)| \le 2
∣
f
′
(
x
)
∣
≤
2
for all
x
x
x
. If
f
(
1
)
=
2
f(1) = 2
f
(
1
)
=
2
and
f
(
4
)
=
8
f(4) = 8
f
(
4
)
=
8
then the value of
f
(
2
)
f(2)
f
(
2
)
is :- (A) 2 (B) 1 (C) 3 (D) 4
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