Difference between revisions of "2007 Cyprus MO/Lyceum/Problems"
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== Problem 14 == | == Problem 14 == | ||
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[[2007 Cyprus MO/Lyceum/Problem 14|Solution]] | [[2007 Cyprus MO/Lyceum/Problem 14|Solution]] |
Revision as of 13:39, 6 May 2007
Contents
Problem 1
If ,then the value of the expression
is
A.
B.
C.
D.
E.
Problem 2
Given the formula , then
equals to
A.
B.
C.
D.
E.
Problem 3
A cyclist drives form town A to town B with velocity and comes back with velocity
. The mean velocity in
for the total distance is
A.
B.
C.
D.
E.
Problem 4
We define the operation ,
.
The value of is
A.
B.
C.
D.
E.
Problem 5
If the remainder of the division of with
is
, then the remainder of the division of
with
is
A.
B.
C.
D.
E.
Problem 6
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is a square of side length 2 and
is an arc of the circle with centre the midpoint
of the side
and radius 2. The length of the segments
is
A.
B.
C.
D.
E.
Problem 7
If a diagonal of a rectangle forms a
angle with one of its sides, then the area of the recangle is
A.
B.
C.
D.
E. None of these
Problem 8
If we substract from 2 the inverse number of , we get the inverse of
. Then the number
equals to
A.
B.
C.
D.
E.
Problem 9
We consider the sequence of real numbers such that
,
and
,
. The value of the term
is
A.
B.
C.
D.
E.
Problem 10
The volume of an orthogonal parallelepiped is and its dimensions are integer numbres. The minimum sum of the dimensions is
A.
B.
C.
D.
E. None of these
Problem 11
If and
, which of the following is correct?
A.
B.
C.
D.
E.
Problem 12
The function has the properties
and
, where
is a constant. The value of
is
A.
B.
C.
D.
E.
Problem 13
If are the roots of the equation
and
are the roots of the equation
, then the expression
equals to
A.
B.
C.
D.
E.
Problem 14
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