Forum TI-Planet.org

hello, good afternoon, I would like to make a program that would make me not only complete the LCM of the denominators,as I show below:

p / 2.cos(45) + p.cos(45) = p+2.p.cos^2(45) / 2.cos(45)

I appreciate the help

I don't understand !
1) There already is a LCM function on Nspire.
2) Your example doesn't show anything to me (especially because some parenthesis are missing). I really don't see what you want to do...
3) cos(45°) should be simplified by the calculator... but you have to specify Degree by adding °, or choosing Degree in the settings.

Maybe you should explain a little more and give a better example.

Bisam wrote:I don't understand !
1) There already is a LCM function on Nspire.
2) Your example doesn't show anything to me (especially because some parenthesis are missing). I really don't see what you want to do...
3) cos(45°) should be simplified by the calculator... but you have to specify Degree by adding °, or choosing Degree in the settings.

Maybe you should explain a little more and give a better example.

[Edit by Bisam]

factor does not work, I do not want to simplify it, I want to make the LCM Manual...
thanks

I already had it set right in degrees instead of radians, and could make a code to give me the simplification steps (step by step)

(p / 2.cos(45)) + p.cos(45) = (p*(2*(cos(45))^(2)+1))/(2*cos(45))

thank you very much

a/b + c = (a+cb)/b

Which step do you want ? I don't see any other possible step than the one I just wrote.

I've spelled wrong ....I mean the steps to go from this (p / 2.cos(45)) + p.cos(45) expression this (p*(2*(cos(45))^(2)+1))/(2*cos(45)) ,intermediate steps...

Ok, you made a parentheses mistake, here, it's :

(p / (2*cos(45))) + p * cos(45)
and
(p*(2*(cos(45))^(2)+1))/(2*cos(45))

It's just simple refactoring, see above and below

that's exactly what I wrote before : a/b + c = (a+bc)/b



p / (2*cos(45)) + p*cos(45) = (p + (p*cos(45)*2*cos(45))) / (2*cos(45)) = (p * (1 + 2*cos(45)*cos(45))) / (2*cos(45)) = (p * (2*(cos(45))^2 +1)) / (2*cos(45))