modulus

  1. I

    An equation with moduli

    Hello all, A problem at the high school level: Solve the equation |x-2|+|x-1|+|x|=-m^2 where m is a some parameter. All the best, Integrator
  2. Chemist116

    How can I find the modulus of the angular acceleration?

    The problem is as follows: A pulley starts spinning from rest a rotation with constant angular acceleration. After $5\,s$ a point in its periphery has an instant acceleration which makes a $53^{\circ}$ angle with its linear speed. Find the modulus of the angular acceleration (in...
  3. Chemist116

    How to obtain the resultant and its modulus from a group of vectors in a circle?

    The problem is as follows: Find the modulus of the resultant from the vectors shown in the picture from below: The alternatives given on my book are: $\begin{array}{ll} 1.&10\,\textrm{inch}\\ 2.&20\,\textrm{inch}\\ 3.&10\sqrt{3}\,\textrm{inch}\\ 4.&20\sqrt{3}\,\textrm{inch}\\...
  4. Chemist116

    Is there a way to obtain the modulus of desired sum from these vectors?

    The problem is as follows: Find the modulus of the resultant vector which are seen in the quadrilateral shown below. Consider M and N to be mid points and \overline{MN}=20 The alternatives given on my book are: $\begin{array}{ll} 1.&20\\ 2.&40\\ 3.&60\\ 4.&80\\ 5.&50\\ \end{array}$ I'm...
  5. V

    Simplify modulus expression

    Can someone tell me how to simplify this expression with modulus: (A/100) mod 10 + (A/10) mod 10 + A mod 10 where A is an integer, but it can also be not divisible by 100. I tried doing this, but it doesn't work... (A/100+A/10+A)mod 10 Thanks
  6. A

    modulus

    Hello, I am a student in discrete mathematics and I have trouble solving this problem. Any help track is welcome! Here is the problem: A boat sinks in the ocean and the 5 survivors each jump in a different lifeboat. They meet on the deserted island in the distance. The next morning, the...
  7. D

    arithmetics

    Hello, I am a student in discrete mathematics and I have trouble solving this problem. Any help track is welcome! Here is the problem: A boat sinks in the ocean and the 5 survivors each jump in a different lifeboat. They meet on the deserted island in the distance. The next morning, the first...
  8. I

    An equation with modulus

    Hello all, Solve the equation |(x^2-3x+2)'|+|x^2-3x+2|'=0. All the best, Integrator
  9. N

    Youngs modulus

    Hi all, Any help would be appreciated. A fibre reinforced composite has 25% volume of carbon fibres with a modulus elasticity of 150.00GPa. The remaining matrix material is polyester resin with a modulus elasticity of 3.10 GPa. Use the homogenous strain model (parallel) to calculate...
  10. S

    Thoughts about factorising an RSA modulus

    As I've pondered my likely inability to factorise a 2048 bit RSA modulus that would give me control of some equipment that I own, I've wondered whether anything can be made of the public exponent. No doubt I'm traversing a well worn path to failure, but anyway. I've reduced(?) the problem to...
  11. SenatorArmstrong

    Modulus and Argument of z

    Hello, I am studying complex numbers. I am a little confused since I see if you have $$z=re^{i\theta} $$ I see you can find $r$ by $$ r = |z| = \sqrt{x^2+y^2}$$ and $$\theta = \arctan(x,y)$$ I have never seen trigonometric functions with more than one variable. Especially in this case where...
  12. C

    Complicate Modulus Algebra and Class of the Rest

    ...be prepared.... I discover that also my Complicate Modulus Algebra shows some properties looking at the Congruence Class of certain tricks... And Fermat the Last is again a good table of work. Again no limits in going deep...
  13. C

    Prime's stair and Complicate Modulus

    Is very simple to explain with my Complicate Modulus Algebra how Prime Stair works and how Riemann reach it: The basic concept is alway the same: A Clock with More than one Hand, so an Algebra that has a modulus that is a function itself, and non just a number. The Two Hand Clock: This...
  14. C

    Very Complicate Modulus Algebra

    I like to frake your mind with my Very Complicate Modulus Algebra: I't possible to define, in the "sense" of Lebesgue integral, so summing integer bars that cover the area of the derivate: $y'=x^n $ from left to right, and having known thickness: $HM_ny = ((Y_{i})^n-(Y_{(i-1)})^n)$ and...
  15. E

    modulus and complex conjugats

    Hi all, any help with this would be great. If z=a+ib and w=c+id, then (a^2+b^2)(c^2+d^2)=x^2+y^2, find the set (x,y)? And if a=4, b=7 c=8 and d=9, then x^2+y^2=9425. So find the set (x,y)? any help greatly appreciated.
  16. D

    Modulus of attached numbers

    I have a question but I'm not sure if it's possible to solve. Define '&' operator which attaches number. For example, 123 & 45 = 12345 84 & 893 = 84893 Question Consider A, B and C to be numbers from 1 to 3 digits length We know: (A & B & C) mod 11 = c Is it possible to...
  17. V

    Modulus functions

    Help me answer question in middle. I don't understand it [emoji20]
  18. A

    Without first expressing them in the form a+bi, determine the modulus and argument of

    Basically what I've done was this: Let z1 = (-2-i√3) Let z2 = (i√3-2) Found the modulus of z1 & z2 which are both √7 and hence found the modulus of z3 which is 1 (correct according to book. The problem is in the argument: I found arg(z1) which is -(π-arctan(√3/2) and...
  19. C

    More Complicate modulus algebra

    As told in an old post, I figured was possible to rise with my sum several results: - the first I show are Powers in N, than in Q than in R, - But now I've little time to play with what I already know is possible to do: More Complicate Modulus Algebra: Is again a modified Sum, like...
  20. A

    Find the modulus and argument of sqrt(3+i).

    I tried letting sqrt(3+i) = a+bi. With some calculations, I got 2a^2 = x + sqrt(x^2+y^2), 2b^2 = -x + sqrt(x^2+y^2), which means a = +- sqrt[(3+sqrt(10))/2] and b = +- sqrt[(-3+sqrt(10))/2]. Does this mean there are four possible answers? But then when I tried doing this by expressing the...