Write the standard form of the equation of the ellipsoid neutered at point P ( 1 , 1 , 0 ) that passes through points A ( 6 , 1 , 0 ) , B ( 4 , 2 , 0 ) and C ( 1 , 2 , 1 ) .
Write the standard form of the equation of the ellipsoid neutered at point P ( 1 , 1 , 0 ) that passes through points A ( 6 , 1 , 0 ) , B ( 4 , 2 , 0 ) and C ( 1 , 2 , 1 ) .
Write the standard form of the equation of the ellipsoid neutered at point
P
(
1
,
1
,
0
)
that passes through points
A
(
6
,
1
,
0
)
,
B
(
4
,
2
,
0
)
and
C
(
1
,
2
,
1
)
.
-
Let n = 7, let p = 23 and let S be the set of least positive residues mod p of the first (p − 1)/2
multiple of n, i.e.
n mod p, 2n mod p, ...,
p-1
2
-n mod p.
Let T be the subset of S consisting of those residues which exceed p/2.
Find the set T, and hence compute the Legendre symbol (7|23).
23
32
how come?
The first 11 multiples of 7 reduced mod 23 are
7, 14, 21, 5, 12, 19, 3, 10, 17, 1, 8.
The set T is the subset of these residues exceeding
So T = {12, 14, 17, 19, 21}.
By Gauss' lemma (Apostol Theorem 9.6),
(7|23) = (−1)|T| = (−1)5 = −1.
Let n = 7, let p = 23 and let S be the set of least positive residues mod p of the first (p-1)/2
multiple of n, i.e.
n mod p, 2n mod p, ...,
2
p-1
-n mod p.
Let T be the subset of S consisting of those residues which exceed p/2.
Find the set T, and hence compute the Legendre symbol (7|23).
The first 11 multiples of 7 reduced mod 23 are
7, 14, 21, 5, 12, 19, 3, 10, 17, 1, 8.
23
The set T is the subset of these residues exceeding
2°
So T = {12, 14, 17, 19, 21}.
By Gauss' lemma (Apostol Theorem 9.6),
(7|23) = (−1)|T| = (−1)5 = −1.
how come?
Shading a Venn diagram with 3 sets: Unions, intersections, and...
The Venn diagram shows sets A, B, C, and the universal set U.
Shade (CUA)' n B on the Venn diagram.
U
Explanation
Check
A-
B
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University Calculus: Early Transcendentals (4th Edition)
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