Math Is Fun Forum

tony123

Member

Registered: 2007-08-03

Posts: 229

solve equation

find x

Bob

Administrator

Registered: 2010-06-20

Posts: 10,621

Re: solve equation

hi tony123

Thanks for another great exercise.

I'm still stuck with

. Prove that

Easy to show it's a possible value for x+y and the graph suggests it's unique, but I still cannot prove it properly.  Hint please.

Bob

---

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

tony123

Member

Registered: 2007-08-03

Posts: 229

Re: solve equation

hi bob
I'm glad you liked these problems
For the acute angles problem,
Someone sent this solution hope you like it
https://www.youtube.com/watch?v=TZi-x7ctxrU

zetafunc

Moderator

Registered: 2014-05-21

Posts: 2,436

Website

Re: solve equation

I'm still stuck with

. Prove that

Easy to show it's a possible value for x+y and the graph suggests it's unique, but I still cannot prove it properly.  Hint please.

Hi Bob,

Bob

Administrator

Registered: 2010-06-20

Posts: 10,621

Re: solve equation

hi zetafunc and tony123,

Thanks for providing me with ways to do this.

Bob

---

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob