Prove that a function
→
is
recursive if and only if its graph is a recursive subset of
Prove that a function → is recursive if and only if its graph is a recursive...
Let ⊂
be a
rectangle and let f be a function which is integrable on R. Prove
that the graph of f, G(f) := {(x, f(x)) ∈
: x ∈ }, is a
Jordan region and that it has volume 0 (as a subset of
).
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The figure below shows a graph of the derivative
of a function
. Use this graph to answer parts (a) and (b)
(a) On what intervals is
increasing or decreasing?
(b) For what values of
does
have a local maximum or minimum? (It asks to be specific).
Only the
values are needed (not ordered pairs).
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Find the Laplace transform of the periodic function
whose graph is given below.
(Click on graph to enlarge)
________
______
______
_________
= _________
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Prove the following
Let
with
Then:
i)
if and only if
where the double inequality
means
and
ii) If
,
if and only if
.
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Let
be the real line with Euclidean topology. Prove that every
connected subset of
is an interval.
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Suppose that
is a bounded function with following Lower and Upper
Integrals:
and
a) Prove that for every
, there exists a partition
of
such that the difference between the upper and lower sums
satisfies
.
b) Furthermore, does there have to be a subdivision such that
. Either prove it or find a counterexample and show to the
contrary.
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suppose
prove that 0 is the only eigenvalue of N
(hint: fist show 0 is an eigenvalue of N, and then show if
is any
eigenvalue then =0
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Suppose
is a bounded function for which there exists a partition
such that
. Prove:
is a constant function
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Let yp(y) be the C(2) inverse demand function facing a monopoly, where y++ is its rate of output, and let yC(y) be the C(2) total cost function of the monopoly. Assume that p(y)>0, p'(y)<0, and C'(y)>0 for all y++, and that a profit maximizing rate of output exists. Total revenue is therefore given by R(y)=p(y)y. Given that question uses an inverse demand function, the elasticity of demand, namely (y), is defined as (y)= 1/p'y p(y)/y. Why is (y)<0? Prove that...
Let
be an inner product space (over
or
), and
. Prove that
is an eigenvalue of
if and only if
(the conjugate of
) is an eigenvalue of
(the adjoint of
).
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