Math 131 Day 1 Hand In. Name: Answers
[Pages:1]Math 131 Day 1 Hand In. Name: Answers
Warm up exercises. Work neatly and in pencil.
1. State the Mean Value Theorem (MVT) and draw a picture (different than the one in the text) which illustrates its meaning. Note: the MVT is the single most important theorem in Calculus I and we will use it again this term.
The Mean Value Theorem: Assume that
1. f is continuous on the closed interval [a, b]; 2. f is differentiable on the open interval (a, b).
Then there is some point c between a and b so that
f (b) - f (a)
f (c) =
.
b-a
This is equivalent to saying f (b) - f (a) = f (c)(b - a).
? tangent? sec?ant .....................................................................................................................................................................................................................................................................................................................................................................................................
a
c
b
Figure 1: Parallel secant and tangent lines exist when the Mean Value Theorem applies.
2. State the derivatives of the following functions. Review if necessary.
a) f (x) = 2 cos x + arcsin x;
1 f (x) = -2 sin x +
1 - x2
b) h(t) = t2 tan t; h (t) = 2t tan t + t2 sec2 t
3. Determine these antiderivatives.
a)
sin
x
+
2
sec
x
tan
x
dx
=
-
1 3
cos
x
+
2
sec
x
+
c
b)
x
-
4ex
+
1 dx
=
2 3
x3/2
-
4ex
+
x
+
c
4.
lim ex - 1 l =Ho lim x0 ln(x + 1) x0
ex
1 x+1
=
e0 1
= 1.
................
................
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