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# Quick hyperbolic function question watch

1. I need to work out the value of x when sinhx = 1

I got to this point:

e^(x) - e^(-x) = 2

Now I know I am meant to multiply everything by e^(x) but everything seems to go wrong from there so can someone finish off my working out please. cheers
I need to work out the value of x when sinhx = 1

I got to this point:

e^(x) - e^(-x) = 2

Now I know I am meant to multiply everything by e^(x) but everything seems to go wrong from there so can someone finish off my working out please. cheers
Yes, multiply through by

You get which is just a quadratic in so you can solve for x once you solve for the exponential.
I need to work out the value of x when sinhx = 1

I got to this point:

e^(x) - e^(-x) = 2

Now I know I am meant to multiply everything by e^(x) but everything seems to go wrong from there so can someone finish off my working out please. cheers
If then , this definition for the inverse of sinh is well worth remembering.
4. (Original post by B_9710)
If then , this definition for the inverse of sinh is well worth remembering.
I think that's in the formula booklet as far as the exam is concerned; though two very simple definitions which can be useful to remember for the exam are:

...

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