Adding waves of different frequency

[HarryShatter]

I am trying to find a way of adding a number of sine waves to find the resultant equation using Multisim. I have had some success with the circuit below, using the bode plotter and the "Single Frequency AC" analysis.

This is great for summing voltages of the same frequency: I can see resultant amplitude, phase angle, and I already know the frequency. 

However, it's no good for finding these values when the frequency is different. I believe this is because the AC analysis doesn't take the frequency into account as there is no AC analysis frequency option in the voltage source properties. Please correct me if I'm wrong!!

Is there a way to do what I want in Multisim?

[HarryShatter]

Can anybody help with this?

Or can anyone suggest where I would be able to get an answer?

[tipa · Accepted solution]

Привет, Харри! Напиши, пожалуйста, математическую формулу того, чего ты хочешь. Я думаю путём сложения графиков различных функций можно получить ответ.
Удачи!

[tipa]

Спасибо за звезду!

[tipa]

Спасибо за звезду!