Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
H
How would you solve positive integer adding to a certain number questions.
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1
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2K
Dr.Peterson
Dr.Peterson
K
How to solve this? The first three terms of a different geometric progression are (4/3)cos^2(3theta), (16/9)cos^4(3theta), and (64/27)cos^6(3theta)
2
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27
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4K
blamocur
blamocur
R
Complex Numbers: Find the modulus of (1 + i sqrt{3}). Hence evaluate (1 + i sqrt{3})^3. Give your answer in x + iy form.
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12
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2K
reggiwilliams
R
M
Linear Algebra Vectors (Find point P in R3 such that A,B,C and P form a rhombus)
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2
Views
874
Steven G
Steven G
R
Indices: Two variables x & y satisfy the equation y = 3*4^x. Find 'a' if (a,6) lies on graph. Find 'b' if (-1/2,b) also lies on the graph.
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2
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7K
lookagain
L
B
Help in problem of theory of equations: Let a ≠ 0, b, c be integers and sinx, cosx be the rational roots of the equation ax^2+bx+c=0....
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14
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2K
blamocur
blamocur
R
Inverse functions and graphing: Find the inverse function for the function y = x^2 - 4x + 5, and draw its graph
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5
Views
1K
Dr.Peterson
Dr.Peterson
A
Complex roots: Given that z = -3/2 + i*sqrt{11}/2 is a root of z^4 - 3z^3 - z^2 + kz + 40 = 0, find...
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10
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2K
blamocur
blamocur
D
Is it possible to solve for any variable in this system of equations? (All variables must be > 0; no variable can be +- 10,000 from another)
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13
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2K
Dr.Peterson
Dr.Peterson
C
Gaussian elimination with augmented matrix
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3
Views
1K
Steven G
Steven G
L
Can someone check my working on this algebra? (alpha) + (beta) = -5/2, (alpha)(beta) = -5, (alpha)^2 + (beta)^2 = 65/4, (alpha)^3 + (beta)^3 = -425/8
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3
Views
920
Steven G
Steven G
R
Sequences: sequence given by T_n = 3(2/3)^n - 1, where n is a positive integer; find T_1,T_2,T_3; show that T_{n+1) = 2(2/3)^n - 1; and
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3
Views
879
BigBeachBanana
BigBeachBanana
S
Help defining and refining a logarithmic function: Say I want to save money over the period of 60 months with a final target: say $50,000
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3
Views
894
BigBeachBanana
BigBeachBanana
S
Rubik’s Cube: Is there any algebraic function to solve a rubik’s cube? Or which branch of mathematics would help in learning how to solve?
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1
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800
fresh_42
F
R
Find Domain and Range for f(x) = 1/(x^2 - x)
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2
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837
R.M.
R
M
Prove by induction: "Every natural number n can be represented as a sum of powers of 2."
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3
Views
966
lev888
lev888
A
Polynomial proof: Prove that if p(x) is a real polynomial s.t. p(x)≥0 for all real x, then p does not have any real roots of odd multicity.
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2
Views
814
Aion
A
A
Greatest common divisor between two polynomials (p(x)=x^3+2x^2−x−2 and g(x)=x^3+2x+a) Find all values of a such that....
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4
Views
1K
Dr.Peterson
Dr.Peterson
M
Calculate the amplitude of the pulse that is reflected from a disc-shaped reflector
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0
Views
494
mikewill54
M
R
Simultaneous equations: Can you tell me how to solve the simultaneous equations X^-xy+3y^=15 X^+xy-y^=5
Replies
10
Views
1K
reggiwilliams
R
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