Answer:
5.001
= 5 + 0.001
Let
=
140 ? 175 = ?35
Taking
y = f(x) ? (1)
?.
(2)
(2)
? (1) ?.
(3)
Using
approximation
(3)
dy = f(5 +
0.001) ? f(5)
=
(3x2 ? 14x)
=
(75 ? 70) (00001) ? 35
=
0.005 ? 35 = ?34.995
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