Melody

http://www.wolframalpha.com/input/?i=sqrt3%28sec%28sec%28sec%28sqrt3%28sqrt3%28sqrt3%28sqrt3%28sqrt3%28sqrt3%28sinh%28sqrt%28log%28taacsc%28nh%28sqrt%28sq%29rt%28sinh%28csc%28csc%28sqrt%28csc%28sqrt%2855555%2C+%5E2%29%29%29%29%5E21%21421%29e%2C+%29%2910e%5Ecot%28%21%21%29%294%29%29%29%29%29%29%29%29%29%29%29%5E2%5E2%29%29%29

(-7.9)+2.0+(-3.3)

= -7.9+2.0-3.3  

NOW use the calculator!

Saseflower, The fraction function is not working properly at the moment.   :(

Hopefully it will be fixed soon ://

Hi David, 

If you are going to ask a few good questions like this why don't you join up so we can get to know you.

It is easier than posting as a guest all the time too.  You only need to choose a username and a password, that is it!

Thanks Alan for that fabulous answer.  

Chris sent the problem in a private message to make sure  that i saw it, and that i would include it in my next wrap.  :)  

Chris worked through your answer  and was very impressed by your logic.    

Thanks for sending it to me Chris.   :)

Don't fret. They are just CPhill's smelly socks.   @@^$#@@

Yes I know that Alan - That is why I wrote that it was not correct.

I suppose i should jut have deleted it.  I will delete it now.

I am working on a solution that uses co-ordinate geometry.  I am sure I can do it that way but it is quite painful especially if I want to keep the answer exact.  ://

There you go Chris, Yours is wrong too.   LOL

But your diagram is fantastic.    

I am only joking Chris,  You answer is great too :))

Thanks for this distraction Alan.  I have enjoyed it.   

An example of direct variance.

The number of teachers in a school varies directly with the numer of students.

Because, if there are more students then there will be more teachers.

Say there is 1 teacher to 25 stuents 

then      

\(T=\frac{1}{25}\;S\\ or\\ T=\frac{S}{25}\)

I do not understand your question :/

Do you mean on the web2 calculator?

Well inverse trig is the same as arc trig.

so use atan, asin   or   acos

you can either press [2nd] first

or

if you press sin and leave your finger a little longer than usual, it will turn into asin for you.

How about that.