Melody

I suspect guest was joking :)

Thanks guest :)

It is still infinity$

But no one is THAT rich ://

Tiggsy didn't mean any offense EP.

He was just being helpful.  

just hit the 2nd button 

what is the apy at 15% compouned semianually

I do not know what apy stands for but

The annual effective interest rate is   

\((1+0.075)^2-1\\ =1.075^2-1\\ =1.155625-1\\ =0.155625\\ =15.56\%\)

Nice pic amnesia :))

Thanks Alan,

I'd still be interested in someone doing it properly though.  :/

Maybe my answer really is fully acceptable - I am not sure.

e^(π.i) - 1 = 0. How does this most famous equation in Math =0? Thanks for help.

\(\boxed{e^{i\theta}=cos\theta+isin\theta}\\ \)

\(e^{\pi i}\\=cos\pi+isin\pi\\=-1+i*0\\ =-1+0\\ =-1\\ so\\ e^{i\theta}{\color{red} +}1=0\)

You are right. 

There are no real solutions to this.

The imaginary solutions are

X=+2i    and      x=-2i