Math Is Fun Forum
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#1 2015-02-09 03:44:59
Trig Equation
Solve:
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#2 2015-02-09 03:54:00
- Bob
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- Registered: 2010-06-20
- Posts: 10,643
Re: Trig Equation
Did you just use a random function generator for this one ?
Got to get on my new rowing machine. Maybe by the time I've done 3.6Km I'll have some inspiration.
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 
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#3 2015-02-09 03:58:01
Re: Trig Equation
No, I received a text asking me to do this or post it.
I texted back why he needed this.
He said that he challenged himself to solve it because he has "trigonometric inverse functions in his syllabus".
I do not think there is a 'nice' method to do this but that is just me.
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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#4 2015-02-09 05:56:47
- Bob
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- Registered: 2010-06-20
- Posts: 10,643
Re: Trig Equation
I have seen inverse trig equations that have been constructed to simplify nicely but I don't think this is one of them. If your friend has just thrown together a load of functions then it is very unlikely it will have a 'nice' solution. If he wants some problems that do make use of trig and inverse trig I can probably find / invent some.
Meanwhile, what's to stop you just using a numerical solver for this. Or graph the RHS and intersect with y = x.
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
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#5 2015-02-09 12:46:38
Re: Trig Equation
That is a good idea. Why didn't I think of graphing it?
'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.
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