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Steven G replied to the thread Square root of a square.Suppose x=5. Then x^2 = 25. Now the square root of 25 is 5. Now suppose x=-5. Then x^2=25 and the square root is 5. Let's see what... -
Dr.Peterson replied to the thread U-Substitution to find indefinite integral.You want to express the integrand as the product of some function of u, and the differential du=\frac{du}{dx}dx. You have the... -
Mmrtwhs replied to the thread Construction of a quadrilateral.This is the third different math forum on which he has posted this sentence. He still hasn't explained what he means.
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Dr.Peterson replied to the thread Definition of a composite number.Read the definition carefully!!! Given that m=-3, your number is n=m^2-1=(-3)^2-1=(-3+1)(-3-1)=(-2)(-4)=8. You can't use factors -2 and...
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Jjpanknin replied to the thread Definition of a composite number.I get this part, but from there how can I then prove what number m actually is? If it can be both, I can't make a definitive statement...
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Bbarevalleballe replied to the thread 8 person doubles round robin.This is a real life question. I'm organising such tournaments on a regular basis and want to do compare the different solutions.
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blamocur replied to the thread 8 person doubles round robin.Just curious: is this a real life question, or is this an academic exercise? -
blamocur replied to the thread Construction of a quadrilateral.What do you mean by "describe" ? Straightedge and compass construction ? What have you tried? Where are you stuck?
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Ffresh_42 replied to the thread Definition of a composite number.The problem with \pm 1 is that they are the units. So everything we say about divisibility is always only up to units (invertible...
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Dr.Peterson replied to the thread Definition of a composite number.You might answer your own question by considering whether, if a number has negative factors, that implies that it also has positive...
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JI'm writing a proof for a discrete math class that is asking for proof that an integer is not prime (that for a perfect square, the...
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ZWelcome to FreeMathHelp.com! Please take the time to read the following before you make your first post. It will help you to get your...
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PProbability reacted to MarkOlwen's post in the thread Inelastic Non collinear angled collisions with
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You’re running into problems because you’re applying 1-D, perfectly inelastic momentum equations to a 2-D angled collision, and that... -
Bbarevalleballe replied to the thread 8 person doubles round robin.Hi everyone, I have similar question to the original post that I have been struggeling to find an answer to. Double Tournament (two a...
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DDescribe the quadrilateral ABCD, given the lengths of the sides in order and the angle between the two opposite sides AB, CD. (Through B...