Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
M
Help please with question 57: 4-by-4 grid with 4 symbols standing for numbers
Replies
3
Views
655
Dr.Peterson
Dr.Peterson
S
Let A be a 3*3 matrix with A^3 = I. Find the rank of the matrix B = A - I.
Replies
7
Views
814
blamocur
blamocur
N
What are the last two digits of 2017^{2017}?
2
Replies
33
Views
4K
Agent Smith
Agent Smith
S
Find the eigenvector: Let S be n*n square matrix w/ all non-zero elements. The sum of each row's elements is equal to 1.
Replies
1
Views
550
blamocur
blamocur
S
Finding an avg numerical value
Replies
3
Views
659
Agent Smith
Agent Smith
S
Proved that not exist [imath]n\times n[/imath] square matrix A and B that satisfied the equation [imath]AB−BA=IAB−BA=I[/imath]
Replies
1
Views
563
topsquark
topsquark
A
Can a number of this form be a perfect square? (4 * 10^{2n-1} - 31) / 9
2
Replies
30
Views
4K
Agent Smith
Agent Smith
A
Finding where point (m, n) ends up when there's an inverse transformation.
Replies
3
Views
508
AgeOfAsparagus
A
L
Finding a transformation matrix: map the unit cube to the displayed parallelogram
Replies
2
Views
875
lgc1007
L
S
square root and inequality: prove that sqrt(6)+sqrt(12)+sqrt(21) < 11
Replies
14
Views
1K
BobP
B
C
3 Equal parts plus %: I start with 30lbs of beef; customer wants 1/3 straight beef, other 2/3 w/ 40% pork ratio.
Replies
5
Views
607
cdalgo
C
H
Functions problem! "If f(k/2)=1 and f(p+1)=9. Show that k^2+p^2 is divisible by 5."
Replies
7
Views
818
khansaheb
K
H
Finding Shared Unknowns In Two Different Equations
Replies
3
Views
610
khansaheb
K
N
Mr.Luc hits the ball toward an outfield fence that is 10 ft high and 210 feet from the home plate.
Replies
4
Views
566
khansaheb
K
Qwertyuiop[]
writing this sum in binomial form: sum, k=1 to 2n, of 2n-choose-k * 2^{-2k} * 3^{2n-k}
Replies
8
Views
1K
Qwertyuiop[]
Qwertyuiop[]
N
10 people sharing marbles: We have 10 people standing in a row. At first, the total number of marbles the females have were...
Replies
14
Views
2K
blamocur
blamocur
J
Solving Multiple Variable Equation with Exponents: ((Q_a)/(Q_d))^{1.85} * (P_d - P_e) + P_e = ...
Replies
7
Views
789
jzembrodt56
J
Qwertyuiop[]
summation binomial theorem: express this sum ∑k=2n(nk)3n−k2(−1)2k+3∑k=2n(kn)32n−k(−1)2k+3 in the binomial form (x+y)n(x+y)n
Replies
1
Views
486
blamocur
blamocur
N
Let p(x) = x^4 + ax^3 + bx^2 + cx + d, where a, b, c, d are real numbers. It is known that...
2
Replies
32
Views
4K
nanase
N
R
Induction for inequality: 2^{|x| - 1} <= x <= 2^{|x|}
Replies
7
Views
738
Dr.Peterson
Dr.Peterson
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