Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
I
Check this please? It's simplifying surds: sqrt{20} + sqrt{45} - sqrt{5}
Replies
7
Views
1K
The Highlander
The Highlander
Y
Graph f(x) = -3x, g(x) = -3x - 5 on same coord. system; describe relationship
Replies
9
Views
1K
Bruce
B
Qwertyuiop[]
Find modulus and Arg of the complex number 1 / (1 + i tan(theta))
Replies
10
Views
1K
pka
pka
Z
"We write (x^2)/(x^+5x+3) = F(x) - (G(x))/(x^2+5x+3) where deg G(x) < 2. Then..."
Replies
6
Views
688
Harry_the_cat
Harry_the_cat
Qwertyuiop[]
Complex conjugate of complex number written as fraction
Replies
6
Views
686
topsquark
topsquark
Qwertyuiop[]
Complex numbers: Prove (Re(2z))^2 - sqrt{5} Im(z^2) + |conjugate of z|^2 is positive
Replies
10
Views
856
Qwertyuiop[]
Qwertyuiop[]
A
Geometric sequence and interest: Debt owed = ar^n - x{(r^n - 1)/(r - 1)}
Replies
13
Views
2K
khansaheb
K
M
Prove the irrationality of cbrt[6] - cbrt[5] (I've tried contradiction or finding a poly, but...)
Replies
2
Views
565
Steven G
Steven G
S
If q(x) = 5-7x, find x if q(-2x) = 12.
Replies
7
Views
926
The Highlander
The Highlander
S
Found this in my year 10 textbook on polynomials and doesn't know the meaning
Replies
4
Views
602
Steven G
Steven G
J
  • Locked
Factoring (x + dx)^{1/2} to get x^{1/2} (1 + dx/x)^{1/2}
Replies
19
Views
1K
stapel
stapel
Y
proving that log(u/v).log(s/t) equals log(u/s).log(v/t) + log(u/t).log(s/v)
Replies
3
Views
2K
topsquark
topsquark
K
Need help solving diophantine inequalities (sqrt(a) < b < sqrt(a + 10^8))
Replies
5
Views
621
JeffM
J
K
ohms law - Finding Source Voltage of a DC series circuit
Replies
8
Views
720
The Highlander
The Highlander
D
X raised to the power of X equals Y. Given Y, how to calculate X?
Replies
12
Views
2K
Dr.Peterson
Dr.Peterson
T
How should I solve the following inequality?
Replies
3
Views
469
Dr.Peterson
Dr.Peterson
M
An inequality: (sqrt(1-a)-sqrt(1-b))^2 >= (sqrt(1-a/c)-sqrt(1-b/c))(sqrt(1-ac)-sqrt(1-b*c))
Replies
6
Views
803
Dr.Peterson
Dr.Peterson
C
Problem with understanding closure property in binary operation
Replies
8
Views
1K
lev888
lev888
A
Domain problem: how to find domain of y = sqrt[ (-3) / (x^2 - 5x + 4) ]
Replies
15
Views
2K
Steven G
Steven G
D
Possible to solve for T? E=T-((0.3+(0.13T))
Replies
3
Views
590
The Highlander
The Highlander
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