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Free Math Help Forum
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Helpers, maybe dissociate yourselves from threads that keep going on and on.
Sep 16, 2023
khansaheb
Administration Issues
Have an issue regarding the message boards? This is the place to ask for new features, critique the design, or let me know about site performance problems (but no personal attacks please).
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531
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2.6K
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531
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2.6K
LaTeX \newcommand does not work for me
Oct 30, 2023
topsquark
Free Math Help
Arithmetic
For basic math questions about addition, multiplication, fractions, etc.
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19.7K
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Is there a formula or way to calculate which numbers we can divide a certain number to only produce non decimal numbers?
Thursday at 12:22 AM
Steven G
Pre-Algebra
Questions from "Pre-Algebra" classes.
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2.3K
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11.6K
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2.3K
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11.6K
B
What Books are Recommended? (pre-algebra books that are easier to comprehend)
Nov 13, 2023
Bruce
Beginning Algebra
Specifically for introductory questions about algebra (Algebra I).
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8.4K
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42.9K
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8.4K
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42.9K
cashier ticketing problem: A cashier has a total of 400 tickets of five different colours Blue, Green, Red, Yellow and Orange.
Nov 14, 2023
BigBeachBanana
Intermediate/Advanced Algebra
For more advanced algebra topics, including Algebra II and Pre-Calculus.
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87.8K
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17.9K
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87.8K
writing this sum in binomial form: sum, k=1 to 2n, of 2n-choose-k * 2^{-2k} * 3^{2n-k}
Sunday at 10:44 AM
Qwertyuiop[]
Geometry and Trig
Ask your questions about all levels of geometry from elementary school through college.
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51.5K
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10.3K
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51.5K
Mathematical Prison Escape: Create challenge where prisoner has to use geo/trig to escape
Yesterday at 10:39 PM
lev888
Probability / Statistics
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8.7K
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33.9K
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8.7K
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33.9K
(Roots of Quadratic Equations) A, BB, and CC are selected at random and independently from the interval (0,1)(0,1).
Yesterday at 4:22 AM
BigBeachBanana
Calculus
All levels of calculus from Calculus I through Differential Equations and beyond.
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18.5K
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85.9K
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18.5K
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85.9K
How Did I Mess Up? The Answer Should Not Be Negative.
Yesterday at 5:37 PM
Dr.Peterson
Differential Equations
Advanced calculus topics from Diff EQ go here.
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1.9K
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7.3K
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1.9K
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7.3K
How do I go about solving this problem? Let f(t) = |t| for -1<t<1; find periodic soln to x"+(pi)^2 x = f(t)
Yesterday at 3:10 PM
blamocur
Advanced Math
For the highest-level (post-calculus) math questions that don't fall into any other category.
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24.3K
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24.3K
Substantial Difficulties Encrypting Letter String ASCII values for RSA Assignment
Friday at 8:32 AM
blamocur
Finance/Business Math
Compound Interest, Earnings Growth, Tax Rates, etc.
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9.9K
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K
blue ridge construction take out a loan with a fixed annual effective interest rate of 13.9%. Two months after taking out the loan...
Nov 19, 2023
khansaheb
Math Odds & Ends
Clever math jokes, trivia, good links, etc.
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2.5K
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16.8K
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2.5K
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16.8K
L
Number Theory 11/26
Monday at 10:10 AM
lookagain
Latest posts
Mathematical Prison Escape: Create challenge where prisoner has to use geo/trig to escape
Latest: lev888
Yesterday at 10:39 PM
Geometry and Trig
How Did I Mess Up? The Answer Should Not Be Negative.
Latest: Dr.Peterson
Yesterday at 5:37 PM
Calculus
How do I go about solving this problem? Let f(t) = |t| for -1<t<1; find periodic soln to x"+(pi)^2 x = f(t)
Latest: blamocur
Yesterday at 3:10 PM
Differential Equations
(Roots of Quadratic Equations) A, BB, and CC are selected at random and independently from the interval (0,1)(0,1).
Latest: BigBeachBanana
Yesterday at 4:22 AM
Probability / Statistics
Confused About Which Derivative Rule to Use First
Latest: Dr.Peterson
Monday at 4:57 PM
Calculus
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