Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
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Induction problem: Company ships sandwiches in boxes of 3 or 5 each.
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4
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731
Denis
D
J
Pythagoras Theorem: If XY = 10 cm and YZ = 2XZ calculate the lengths of XZ and YZ
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2
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2K
sinx
S
S
Calculate discrete value from a series of averages
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1
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551
Dr.Peterson
Dr.Peterson
M
Prove that Un = (2^n - (-1)^n)/3 is an odd number for all positive integers
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2
Views
885
Masaru
M
K
Ellipse and tangent intersect: x^2 / 9 + y^2 / 25 = 1
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1
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576
Deleted member 4993
D
K
Conic section, ellipse: x^2 / 4 + y^2 / 9 = 1 translated by vector [[a][b]] to get...
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2
Views
651
ka923
K
D
Sum - please help
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2
Views
671
JeffM
J
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Simplify: Xt = Xt-1 [1- (1/n-t) - r]
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11
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1K
Denis
D
S
Need Answers: If −7<x≤6 determine a and b for the inequality : a≤3x+8<b.
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1
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1K
Dr.Peterson
Dr.Peterson
C
solve the linear equation for x and y: (5/9)x - 1/5 = y/6 + 8/15
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1
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695
Dr.Peterson
Dr.Peterson
F
Given (2,3) (2, 5) (2, 11) (2, 17), find next three sets
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7
Views
970
frappa
F
A
Is this a valid method for solving a^(2x)+ a^4= a^(x+1) + a^(x+3) ?
Replies
6
Views
926
Dr.Peterson
Dr.Peterson
K
Summation: Prove sum[r=1,n][6r^2+32r] = n(n+1)(2n+17)
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3
Views
944
HallsofIvy
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A
Weak and Strong Induction (examples of the "strong" sort?)
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5
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1K
HallsofIvy
H
J
Mechanics and Materials Change in Length and Stress/Strain
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15
Views
2K
Deleted member 4993
D
L
Flipping Fractals...
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1
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526
Dr.Peterson
Dr.Peterson
S
Please help ? "Water shoots out from a horizontal pipe which is at a height of 52cm"
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1
Views
2K
tkhunny
tkhunny
I
Matrix with complex numbers: 2ix + y - z = -1 -x +3y +2z = 5 - 7i 3x + (1+iy) - iz =
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1
Views
629
tkhunny
tkhunny
I
Complex numbers - equations: (2z + i)^4 − 16i = 0, |z − 2 + i| + i ¯z = 3
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3
Views
1K
Isiltir
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L
Help me solve please
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4
Views
595
Denis
D
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