Intermediate/Advanced Algebra

For more advanced algebra topics, including Algebra II and Pre-Calculus.
J
Can this Identity be verified by the Tangent Sum Identity?
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6
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1K
Dr.Peterson
Dr.Peterson
J
What am I missing in this Trigonometric Identity Simplification?
2
Replies
23
Views
4K
jddoxtator
J
J
Changing Trigonometry Cofunction Identities Over the Equals Sign?
2
Replies
24
Views
5K
jddoxtator
J
T
In how many ways can the word Josephite be arranged if the first letter is a vowel?
Replies
8
Views
2K
Dr.Peterson
Dr.Peterson
T
Hard Summation Problem I'm struggling with
Replies
6
Views
1K
blamocur
blamocur
T
Question about exponential functions
Replies
10
Views
2K
Dr.Peterson
Dr.Peterson
logistic_guy
is there something wrong in this question? "Show that if a, b are positive integers, then there is smallest positive integer a−bk, k an integer"
2
Replies
21
Views
7K
Steven G
Steven G
O
prove its true: |A union B| = |A| + |B| – |A intersection B|
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5
Views
3K
khansaheb
K
D
Subgraph one to one
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5
Views
1K
Steven G
Steven G
M
How do I proof that x^(p^p) - x is divisible by x^p - x - 1 over Zp, p - any prime number?
Replies
9
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2K
Makuta
M
G
Can it be natural?
Replies
19
Views
4K
Dr.Peterson
Dr.Peterson
A
General Solution
Replies
2
Views
710
Otis
Otis
J
Simplify 2^k -1 + 2^[ (k+1) -1] ? In trying to prove ... + 2^(n-1) = 2^n -1.
Replies
6
Views
2K
MathNugget
M
J
Double checking Proof of Summation Answer. (500 + 100 + 20 + ... + 4[5^(4 -n)] = 625( 1 - 1/5^n))
Replies
2
Views
976
lookagain
L
E
Hard (for me) GCSE vectors question I am unable to solve. (Given that C,D,E are on same straight line, find BE)
Replies
3
Views
1K
blamocur
blamocur
M
Prove that x^2+17xy+17y^2+1 ≡ 0 (mod m) for any m.
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4
Views
1K
Makuta
M
G
Equivalent Expressions: Which expression is equivalent to (x^2 - 2x - 37) / (x^2 - 3x - 40)?
Replies
7
Views
2K
Cubist
Cubist
P
Expansion of expressions: Some instances of the expression (𝐴+𝐵√𝐶)^𝐷 , in which 𝐴,𝐵,𝐶, and 𝐷 represent distinct single non-zero digits, may...
Replies
3
Views
956
Dr.Peterson
Dr.Peterson
L
Multiplying algebraic fractions: 2/a + (a+2)/4 I understand that the 2 and the 4 can cancel out to become 1/a + (a+2)/2
Replies
8
Views
2K
Steven G
Steven G
A
Function and Inverse, Graphs, Domain and Range, given the function x = 2x - 4
Replies
3
Views
1K
Steven G
Steven G
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