Math Is Fun Forum
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#1 2013-12-06 00:41:57
- niharika_kumar
- Member
- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,062
help me
simplify :
the options are
a)
b)
c)
d)
well,i tried to simplify but was struck by getting the answer:-
pls. help
niharika
friendship is tan 90°.
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#2 2013-12-06 01:01:03
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,643
Re: help me
hi
Just logged in. I'm working on it now. 
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 2013-12-06 01:08:55
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,643
Re: help me
OK. So at least we agree.
Just trying something else .....
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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#4 2013-12-06 01:10:30
- niharika_kumar
- Member
- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,062
Re: help me
this is what i did.
but the answer doesn't match with the options. 
friendship is tan 90°.
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#7 2013-12-06 01:20:52
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: help me
Hi;
You can also use the formula that anonimnystefy showed me.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#8 2013-12-06 01:35:04
- niharika_kumar
- Member
- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,062
Re: help me
thank you
friendship is tan 90°.
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#9 2013-12-06 01:43:24
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,643
Re: help me
Nehushtan: Thanks for pointing out my missing square root sign. I was just getting there as I had decimal values for the four possible answers and the question when you posted.
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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#10 2013-12-06 16:55:15
- niharika_kumar
- Member
- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,062
Re: help me
it was quite good, just needed more intelligent attention.
friendship is tan 90°.
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#11 2013-12-06 20:40:14
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,643
Re: help me
hi niharika_kumar
My 'Help-me' posts do tend to suffer from gremlins 
. What follows may act as a warning to those who read them.
(i) Sometimes typos creep in. I may not spot them until I look at my own post later and sometimes not even then.
http://www.mathisfunforum.com/viewtopic … 51#p293051
(ii) Sometimes I fail to read the question properly and go off 'on a tangent'.
(iii) Sometimes I'm just wrong. I usually leave these errors as I don't like the idea of changing history to make myself look better. In the example above, I think I just got confused by all those square root signs. 
I'm trying to kid myself that I was about to spot it as I had evaluated all the possible answers in a spreadsheet and worked out which one worked (with the right number of roots).
(iv) Sometimes it takes me a while to fully get to grips with a problem. I have some that I'm still trying to answer 2 years later.
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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#12 2013-12-06 20:59:40
- niharika_kumar
- Member
- From: Numeraland
- Registered: 2013-02-12
- Posts: 1,062
Re: help me
I don't know what to say to that but you accept it or not ,you are great in maths(and several others to in this forum) and it is great to interact with you all.
friendship is tan 90°.
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