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  1. M

    Enter the exact answer as a single fraction. Rationalize the denominator, if required

    cos(cos-13/4+tan-13) Enter the exact answer as a single fraction. Rationalize the denominator, if required
  2. X

    enter the input of ( sech 3x / 3 ) in calculator

    how to calculate ( sech 3x / 3 ) , x= ln2 in my casio fx-570ms ?
  3. R

    Evaluate Sin^-1√3/2. Enter your answer in radians.

    Evaluate Sin^-1√3/2. Enter your answer in radians. I would be pi/3 in radians or 60 degrees in degrees. If you take a look at the unit circle pi/6 has the coordinates (1/2,sqrt(3)/2) When you're dealing with sin it's going to be the value in the y-coordinate thus for sin(pi/3)=sqrt(3)/2 I...
  4. E

    simplex algorithm:can leaving variable enter the basis again?

    hi. Is it possible that variable Xi leaves the basis and enter the basis again in the next step? what about other steps (not next to current step)?
  5. W

    Person A and B enter a cafe b/w 8 am and 9am..

    Hi guys :). So I've been working on this problem for a while now I thought I had it but My lecturer said Nope. And there was a simpler way involving a graph. :( ANY help would make you so utterly loved and grant you supernatural powers. QUESTION: wo people A and B will be arriving at a small...
  6. C

    how to enter this into a calculator

    really sorry to ask what is a stupid question but how do i enter this equation into a calculator i should have stayed at school(Crying)
  7. M

    Enter the solution of differential equation

    Hello Everybody. I've starting to use Maple, so I have a couple of questions. In the last few days I have learned the basic of Maple, and now I would like to solve a differential equation. The Math question is: Enter the solution of differential equation...
  8. B

    How do you enter the y variable in TI-83 plus calculator?

    How do you enter the y variable in TI-83 plus calculator? .......Thank you.
  9. R

    Tricky infinite sum to enter into computation program

    Hi, Can anyone think of a way to input the following infinite sum into Maxima for computation? \sum_{n=0}^{\infty }2^{n-1}c_n^2 (The tricky part...) where c_0=\sin\theta and \sin\theta_{n+1}=\frac{1-\cos\theta_n}{1+\cos\theta_n}
  10. M

    enter here

    Hi every bady(Rofl)(Rofl)(Rofl) make Dh as a subjuct: P=[(2.4v/Dh-Dp)(2n+1/3n)]n kl/300(Dh-Dp) any bady can help me to solve this acomplicated question . thanks.
  11. F

    please enter and help me>>>thanks

    find the limits by referring details when you solve them when (x,y)goes to (0,0) : 1_ lim (x^2 + y^2 ) sin ( 1\ (x ^2 + y^2))(i'm trying but i don't know ) 2- lim e ^ -1 over (sqr root for x^2 + y^2) 3- lim { e ^ -1 over (sqr root for x^2 + y^2) } over (sqr root for x^2 + y^2)...
  12. P

    For the function g whose graph is given, state the following. To type or -, enter IN

    For the function g whose graph is given, state the following. To type or -, enter INFINITY or -INFINITY. I don't understand how to do these it says to put infinity and -infinity into the answer box, but both are coming up wrong is my answer to this wrong and how do i know how to determine...
  13. C

    How would I enter the following in my TI-89...

    How do you enter cube roots and radicals into the TI-89? I can't really give an example using the computer keyboard, so an example is on the following page: Example Thanks, Noah