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Today,
05:32 AM
Otis
replied to a thread
Color crypt
in
Math Odds & Ends
I don't get it.
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3 replies | 175 view(s)
Today,
05:07 AM
Otis
replied to a thread
Relative crypt
in
Math Odds & Ends
No problemo (ie, just mix) :cool:
see more
1 replies | 104 view(s)
Today,
03:18 AM
fifthFunction
started a thread
planetary gear outputs
in
Differential Equations
let me know if this is posted in the wrong place what is the math to find out the output of more complex planetary gears? say something like...
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0 replies | 16 view(s)
Today,
01:36 AM
tkhunny
replied to a thread
Unit Circle Trigonometry
in
Geometry and Trig
You have sine. Calculate cosine and tangent. Reference Angle 340 = 360 - 20 200 = 180 + 20 etc.
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1 replies | 32 view(s)
Today,
01:34 AM
tkhunny
replied to a thread
Laplace Transformation of PDE
in
Calculus
1) If only the attachment could be read. Too small. 2) If only you had shown ANY work at all. Hard to help when one cannot know what you have done.
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1 replies | 34 view(s)
Today,
01:23 AM
vaderboi
started a thread
Difference between T1(N) and f(N)
in
Intermediate/Advanced Algebra
I have a homework problem and it goes like this: "Suppose T1(N) = O(f(N)) and T2(N) = O(f(N)). Which of the following are true? (Goes on to...
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0 replies | 44 view(s)
Today,
12:17 AM
Wahamuka
started a thread
Unit Circle Trigonometry
in
Geometry and Trig
Let sin 20◦ = k. Express the following in terms of k. a) sin 340 b) cos 200 c) tan 160 d) cot 70 Been trying to solve this for a while, I...
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1 replies | 32 view(s)
Yesterday,
11:56 PM
vaderboi
replied to a thread
Is my equality statement with logarithms as simplified as it can be?
in
Intermediate/Advanced Algebra
I will keep those rules in mind. Thank you @Dr. Peterson. I feel like I have a much better grasp of logs now.
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6 replies | 185 view(s)
Yesterday,
11:53 PM
Dr.Peterson
replied to a thread
Is my equality statement with logarithms as simplified as it can be?
in
Intermediate/Advanced Algebra
Exactly. You can skip a couple of those steps if you want; for instance, log33^(2^(N-1)) can immediately become 2^(N-1) because of the fact that...
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6 replies | 185 view(s)
Yesterday,
11:29 PM
Rizz_C
started a thread
Laplace Transformation of PDE
in
Calculus
Hey there, I have tried this question and I seem to be completely stuck. Could somebody please help in solving this?
see more
1 replies | 34 view(s)
Yesterday,
10:55 PM
pka
replied to a thread
Diameter and chord in a circle
in
Beginning Algebra
Like Prof Peterson, I cannot read your image. Here is mine, but you must bare with me it is by no means drawn accurately. O is the circle's center,...
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5 replies | 157 view(s)
Yesterday,
10:24 PM
vaderboi
replied to a thread
Is my equality statement with logarithms as simplified as it can be?
in
Intermediate/Advanced Algebra
@Dr. Peterson- Ah. It hadn't occurred to me that I could apply whatever logarithmic function I needed to simplify the statement. I can use a...
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6 replies | 185 view(s)
Yesterday,
10:03 PM
vaderboi
replied to a thread
Is my equality statement with logarithms as simplified as it can be?
in
Intermediate/Advanced Algebra
@Dr. Peterson- Ah. I didn't realize it was a function. So with equality and inequality statements, you can apply the same function to both sides the...
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6 replies | 185 view(s)
Yesterday,
10:03 PM
lookagain
replied to a thread
Prove
in
Calculus
The problem iinvolves a finite series. However, it is possible to compare it to this infinite series: ln(2) = 1 - 1/2 + 1/3 - 1/4 + ... -1 +...
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2 replies | 194 view(s)
Yesterday,
09:59 PM
Otis
replied to a thread
Complex number algebra
in
Beginning Algebra
I expect Denis is awash in red ink; he'd probably be happy to give you some. :cool:
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12 replies | 269 view(s)
Yesterday,
09:09 PM
Denis
replied to a thread
Diameter and chord in a circle
in
Beginning Algebra
You're seeing things!
see more
5 replies | 157 view(s)
Yesterday,
07:23 PM
pka
replied to a thread
Complex number algebra
in
Beginning Algebra
Because {\bf{i}}^2=-1 we now have (4A-2B)+(2A+4B){\bf{i}}=6+7\bf{i} Setting real parts equal & imaginary parts equal. 4A-2B=6\\2A+4B=7 Solve...
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12 replies | 269 view(s)
Yesterday,
06:55 PM
Subhotosh Khan
replied to a thread
Diameter and chord in a circle
in
Beginning Algebra
really.....??!!
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5 replies | 157 view(s)
Yesterday,
06:53 PM
Subhotosh Khan
replied to a thread
Complex number algebra
in
Beginning Algebra
Otis swiped my red ink.......
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12 replies | 269 view(s)
Yesterday,
06:51 PM
Subhotosh Khan
replied to a thread
proof by induction
in
Intermediate/Advanced Algebra
Please share some of your attempts (even though futile) - with us.
see more
1 replies | 87 view(s)
Yesterday,
06:35 PM
Denis
replied to a thread
Finding the Share
in
Probability / Statistics
4712.50 / 333.35 = 14.137 4137.50 / 291.54 = 14.192 1825.00 / 123.32 = 14.799 525.00 / 35.98 = 14.591 If you look at the 1st 3 cases, you see...
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6 replies | 150 view(s)
Yesterday,
05:43 PM
someone111888
started a thread
proof by induction
in
Intermediate/Advanced Algebra
hello everyone I was requested to proof the following by induction: I need to proof that for every n greater or equal to 10. So I tried to...
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1 replies | 87 view(s)
Yesterday,
04:34 PM
Dr.Peterson
replied to a thread
Finding the Share
in
Probability / Statistics
You are asking for "the formula" that produces these results: input output 4712.50
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6 replies | 150 view(s)
Yesterday,
04:05 PM
Denis
started a thread
Relative crypt
in
Math Odds & Ends
In Paris, I dress a brother! (6) 1 e
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1 replies | 104 view(s)
Yesterday,
03:37 PM
Denis
replied to a thread
Complex number algebra
in
Beginning Algebra
Why isn't your "-1" in red ink?
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12 replies | 269 view(s)
Yesterday,
03:23 PM
Denis
replied to a thread
Diameter and chord in a circle
in
Beginning Algebra
Your English is quite good...better than many English students :rolleyes:
see more
5 replies | 157 view(s)
Yesterday,
03:19 PM
Otis
replied to a thread
Finding the Share
in
Probability / Statistics
If the smaller numbers are percentages of the larger numbers, then we could use the word 'Whole'. The smaller number is a Part of the Whole. To...
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6 replies | 150 view(s)
Yesterday,
03:17 PM
Subhotosh Khan
replied to a thread
Finding the Share
in
Probability / Statistics
This cannot be the problem assigned to you. Please post the problem - exactly - as it was assigned to you.
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6 replies | 150 view(s)
Yesterday,
03:13 PM
Subhotosh Khan
replied to a thread
Complex number algebra
in
Beginning Algebra
Remember: i^2 = -1
see more
12 replies | 269 view(s)
Yesterday,
02:58 PM
Dr.Peterson
replied to a thread
Complex number algebra
in
Beginning Algebra
First, carry out that multiplication: What real number is 2bi^2 equal to? Then, carry out the addition: What are the real and imaginary parts on...
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12 replies | 269 view(s)
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