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#1 2013-12-06 00:41:57

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,021

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 bundy
Moderator
Registered: 2010-06-20
Posts: 6,380

Re: help me

hi

Just logged in.  I'm working on it now.  smile

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#3 2013-12-06 01:08:55

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,380

Re: help me

OK.  So at least we agree.  smile

Just trying something else .....

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#4 2013-12-06 01:10:30

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,021

Re: help me

this is what i did.
but the answer doesn't match with the options. sad


friendship is tan 90°.

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#5 2013-12-06 01:10:51

Nehushtan
Member
From: London
Registered: 2013-03-09
Posts: 613
Website

Re: help me


156 books currently added on Goodreads

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#6 2013-12-06 01:15:34

Nehushtan
Member
From: London
Registered: 2013-03-09
Posts: 613
Website

Re: help me

bob bundy wrote:

Who told you that? swear

This is what the correct step should be!


156 books currently added on Goodreads

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#7 2013-12-06 01:20:52

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,309

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.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#8 2013-12-06 01:35:04

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,021

Re: help me

thank you


friendship is tan 90°.

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#9 2013-12-06 01:43:24

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,380

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


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#10 2013-12-06 16:55:15

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,021

Re: help me

it was quite good, just needed more intelligent attention. smile


friendship is tan 90°.

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#11 2013-12-06 20:40:14

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,380

Re: help me

hi niharika_kumar

My 'Help-me' posts do tend to suffer from gremlins  eek .  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.  dizzy  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


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#12 2013-12-06 20:59:40

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,021

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. smile


friendship is tan 90°.

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