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  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1 Re: Help Me ! » Still on trig » 2009-12-20 02:44:49

Thanks a lot bobbym for your prompt response. Got some links from that page i'll like to go check out.
But i'll like to know please if u do not mind: were all identities derived from this simple one

? Because for starters i know this
was derived from it. However to get to the latter formula we divided through by
. Why?

#2 Help Me ! » Still on trig » 2009-12-20 00:29:32

Replies: 3

Am new to trig and this identity thing just screws me silly.

My question is: how do i know which identity to use in solving a particular trig problem?

What are the series of questions i need to ask myself the moment i see a trig problem?

#3 Re: Introductions » Forum Features » 2009-12-20 00:13:05

Thanks for the insight all. But i'd like to know how to make text bigger. I surf using my mobile phone and most times i find it difficult viewing the solutions to most math problems(and its not the font size of my phone as that have been moderately increased) ....and since the solutions come highlighted when i click instead of having it go bigger it ends up being distorted.

#4 Introductions » Hello to you all » 2009-12-19 22:07:20

Replies: 4

Maths for me has always been a strange thing that i find quite interesting regardless.

Back while in secondary school i just could not find my bearing around the subject no matter how hard i tried. But if it may well please anyone who cares to know that i am now begining to get a grip on the subject - at least the fear of the subject that has always compounded the problem is begining to dwindle bit by bit.

To say the least i owe my progress to for their concern in putting up a website like that(free) to assist those in need like me. Thanks guys.

From time to time i'll throw in questions. But first let of use this opportunity to ask for your patience as you may every now and then read questions that may look childish. Am taking my time going from the foundation and starting things from scratch - i really want to do this even if it means exhausting all my energy just to be proficient at this subject.

Emmanuel   big_smile

#5 Help Me ! » Trig is driving me crazy » 2009-12-19 21:06:02

Replies: 3

I dropped out of school sometime ago but am back. To make things worse my math teacher is making things difficult for me. He hardly takes his time to explain math concept and formulas.
The problem am having in trig at the moment is where do i start from to prove things like this:

? Secondly in the following formula
why did we divide through by
and not

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