1. ## Hyberbolic function

Hello attached is the question part C which I need help on and my working out so far for part c. I was wondering if I was going about it right and if anyone could give some clues or advice it would be much appreciated.

Kind regards

2. ## Re: Hyberbolic function

In your solution to (b), you should have noticed that the "-2" could have been any number. So when you substitute $x=ct$, you want the ratio of the coefficient of $t^3$ to the coefficient of $t$ to be 4 to 3 - use that to find c. Then you can multiply the whole equation by something to get $4t^3 + 3t + \text{whatever} = 0$. Then you just make the substitution and solve the equation like you did in (b).

- Hollywood