Recent content by mathworker

  1. mathworker

    MHB Solving 0x10 + 0xfe: What's the Answer?

    Hint: if you use 16bit - 1) 0x10 + 0xfe = 0x10e 2) 0x20 + 0xfe = 0x11e And in 8 bit: 1) 0x10 + 0xfe = 0x0e 2) 0x20 + 0xfe = 0x1e So it is more about overflow than reset.
  2. mathworker

    MHB Probability of Winning a Game with Random Number 0-1/2

    B is playing a game in which he has to choose a number A between 0 and 1/2 and his probability of winning if he choose A is $$A^2$$. I have encountered this at middle of some-other problem and couldn't make a move...
  3. mathworker

    MHB Johns Born Same Day: 24M Humans, 4 Letters

    Prove that least two humans named John should have born on same day(means with same D.O.B) if world has only 24 million humans and their alphabet chart contain just 4 letter 'J','H','O' and 'N' and there can't be more than one million humans of same name and world started just 2739 years ago...
  4. mathworker

    MHB How Do We Prove That 'P' Doesn't Vary for Different Free Variables?

    I am studying Introduction to linear Algebra by Gilbert Strang while calculating the particular solution P for $Ax=b$,he made the free variables $0$ to calculate the particular solution and said that P along with linear combinations of null space solutions make up the complete set. I understood...
  5. mathworker

    MHB What are the values of a, b, and c in the following equations?

    In, $$\frac{1}{a}+\frac{1}{b}+\frac{1}{c}=1+\frac{1}{abc}$$ L.H.S to be greater than one (a,b) should be (2,3) substituting them rest is linear equation $$\frac{1}{2}+\frac{1}{3}+\frac{1}{c}=1+\frac{1}{6c}$$ $$c=5$$
  6. mathworker

    MHB What are the values of a, b, and c in the following equations?

    yeah I got it max value is not 1 $$its \frac{13}{12}$$ - - - Updated - - - But,I guess (2,3,5) is the only solution...(Smirk)
  7. mathworker

    MHB What are the values of a, b, and c in the following equations?

    Since modulo is "zero" there is no remainder. $$\frac{(ab-1)(bc-1)(ca-1)}{abc}$$ is not a fraction $$abc-a-b-c+\frac{1}{a}+\frac{1}{b}+\frac{1}{c}-\frac{1}{abc}$$ is not a fraction So the little terms must sum it up to zero or 1 so, $$\frac{1}{a}+\frac{1}{b}+\frac{1}{c}-\frac{1}{abc}=0$$(let)...
  8. mathworker

    MHB Confirm Interest Rate Solution on Total Loan

    Re: ALGEBRA Profit problem. look at the below quotes carefully,
  9. mathworker

    MHB Can the RMS-AM inequality prove the combinatorial coefficient inequality?

    as $$C_0,C_1,C_2,...,C_n$$ are combinatorial coeffs of $$(1+x)^n$$. n is certainly an integer which is $$\geq 1 $$. the rest is obvious...:)
  10. mathworker

    MHB Can the RMS-AM inequality prove the combinatorial coefficient inequality?

    use $$(2^n-1)*n\geq\frac{(2^n-1)}{n}$$ and then $$AM\geq GM$$
  11. mathworker

    MHB Evaluating definite integrals via substitution.

    As you have not changed $$x$$ to $$u$$ you can't change limts from $$\int_0^1$$ to $$\int_1^2$$:rolleyes:
  12. mathworker

    MHB How many combinations of r natural numbers add up to n?

    Thanks for the link,I have gone through it. But as far as I understood partition function doesn't give the number of partitions of specific cardinality.I mean if we want only the partitions that contains $$r$$ terms for example or can we define a restricted partition function that can do the...
  13. mathworker

    MHB How many combinations of r natural numbers add up to n?

    Find the number of different combinations of $$r$$ natural.numbers that add upto $$n$$ I tried this for quite a fair amount.of.time but.couldn't figure it out.(Punch)
  14. mathworker

    MHB Solve for r,t in the Polynomial $3x^3+rx^2+sx+t=0$ with a,b,c Prime

    Re: find f and t It may not be an ellegent one i just gave it a shot$$ \begin{align*}c^2+2c+1&=4a^4\\c&=2a^4-b^2\end{align*}$$ I gave a try at a=2 so b is 5 and c is 7. And 7 is also the first prime to satisfy both equations even individually too. So r is -52 and t is -210
  15. mathworker

    MHB Have you ever been ragged at college?

    As I am going to attend my university education by this weekend,one thing that I am thinking of for a while is ragging(or Hazing).Though there is anti ragging committee and zero tolerance policy I heard ragging(Hazing) is common.Have you ever experienced it?
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