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Intermediate/Advanced Algebra
For more advanced algebra topics, including Algebra II and Pre-Calculus.
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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
Qwertyuiop[]
Nov 18, 2023
Replies
1
Views
245
Nov 18, 2023
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...
nanase
Nov 6, 2023
2
Replies
32
Views
1K
Nov 16, 2023
nanase
N
R
Induction for inequality: 2^{|x| - 1} <= x <= 2^{|x|}
ReallyBadAtMathGuy
Nov 13, 2023
Replies
7
Views
294
Nov 14, 2023
Dr.Peterson
N
fibonacci problems? "If 8th number is 2017, what is largest possible value of 1st?"
nanase
Nov 8, 2023
2
Replies
21
Views
1K
Nov 13, 2023
Dr.Peterson
U
2 Complex numbers questions: If z is complex and |z+16|=4|z+1|, find |z|. Solve -i/(x-iy) = (4+7i)/(5-3i)
umricky
Nov 12, 2023
Replies
2
Views
182
Nov 12, 2023
pka
A
having trouble with solving more complicated Rational Inequalities
AidanL06
Nov 9, 2023
Replies
3
Views
240
Nov 9, 2023
Dr.Peterson
U
W is a subspace of P3 spanned by p1 = 0.9x+0.6x^2-1.5x^3, p2 = 0.3-0.2x+0.4x^3, p3=0.4-0.6x-0.1x^2+0.5x^3.
umid/
Nov 7, 2023
Replies
2
Views
201
Nov 7, 2023
blamocur
M
Ineaquality with absolute value
MathIsEverything
Nov 6, 2023
Replies
4
Views
271
Nov 7, 2023
stapel
A
How to find the width of a rectangle bounded by the x axis
Akalan
Nov 3, 2023
Replies
4
Views
324
Nov 3, 2023
Steven G
zero by power of zero: Why does zero by zero equal to 1 and not to 0?
shahar
Nov 3, 2023
Replies
11
Views
482
Nov 3, 2023
topsquark
Complex numbers: Solve the equation |z|^2 - Re(z^2) + iIm(iz) = 4 - 3i
Qwertyuiop[]
Nov 2, 2023
Replies
1
Views
210
Nov 2, 2023
blamocur
J
Need help understanding how Euler's totient function works.
Joshua David
Oct 31, 2023
Replies
8
Views
396
Nov 2, 2023
blamocur
O
By expanding both sides of the identity (1+x)^3 = (1+x)^3 (1+x)^2, show that 5C2 = 3C2 + 3C1*2C1 + 3C0*2C2
OddDog
Oct 26, 2023
Replies
2
Views
267
Oct 31, 2023
Harry_the_cat
V
Complex number query: "If Z = R + j(omega)L + 1/j(omega)C, express Z in (a+jb) form when..."
vortexring
Oct 24, 2023
Replies
5
Views
361
Oct 30, 2023
topsquark
How to algebraically prove a function is injective/surjective?
Qwertyuiop[]
Oct 26, 2023
Replies
8
Views
388
Oct 27, 2023
Steven G
M
During calculating null space from rref matrix some rows are with 1 variable so it give this variable value of zero so...
Midohoss
Oct 26, 2023
Replies
2
Views
220
Oct 26, 2023
Steven G
D
I've come up with my own quadratic equation
DavidNyan10
Oct 25, 2023
Replies
6
Views
311
Oct 26, 2023
stapel
M
Confusing system of equation with four variables: ab+c+d=3, bc+d+a=5, cd+a+b=2, da+b+c=6
medali
Oct 24, 2023
Replies
5
Views
414
Oct 26, 2023
medali
M
A
Explanation required please: x/40 = y remainder 3, x/7 = y remainder 5, if x > 70
APlusMath
Oct 24, 2023
Replies
6
Views
323
Oct 25, 2023
APlusMath
A
A
College Algebra: "The surface area S of a hot-air balloon is given by S(r)=4(pi)r2 where..."
absofruitlyt
Oct 23, 2023
Replies
3
Views
345
Oct 24, 2023
Steven G
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