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#1 Re: Exercises » trigonometri problem » 2009-06-11 00:49:25

nurshodiq

i have a way to answer #4,
if


and
, so we have







multiple both sides by 4 we have

thanks

#2 Re: Exercises » trigonometri problem » 2009-06-09 17:36:35

nurshodiq

thanks baskar, i had answer for #1. but different with yours,














#3 Exercises » trigonometri problem » 2009-06-04 12:15:42

nurshodiq
Replies: 5

1. find value of


2. find value of

3. if
, prove

4. if
, prove

#4 Re: Exercises » Logarithms » 2009-05-30 01:48:09

nurshodiq

this is my answer for number
#3.




#4.











(i)+(ii)+(iii)

#5 Re: Help Me ! » Trigonometric Identities (Sin/Cos- Proving how to do them) » 2009-05-09 23:49:31

nurshodiq

#2. we have algebra formula :

then



#6 Re: Maths Is Fun - Suggestions and Comments » LaTeX problem » 2009-04-27 00:56:33

nurshodiq

thank so much simron I will be try it

#7 Re: Introductions » proving inequalities » 2009-04-27 00:35:49

nurshodiq

to find the minimum of


 



so minimum of
is 2

#8 Re: Introductions » proving inequalities » 2009-04-26 21:58:47

nurshodiq

we have aritmetic mean (AM) and Geometric mean (GM)


and

so for this problem we have


and both multiple by 4

thanks

#9 Re: Exercises » Square Roots » 2009-04-25 16:03:18

nurshodiq

How many pairs of natural number (x,y) with

prime

#10 Re: Exercises » Square Roots » 2009-04-25 15:44:51

nurshodiq






#11 Re: Maths Is Fun - Suggestions and Comments » LaTeX problem » 2009-04-24 01:32:38

nurshodiq

I have a wordpress blog but I can't  type math simbol using my latex code  why? help me

#12 Re: Introductions » proving inequalities » 2009-04-18 11:56:35

nurshodiq

aritmetic mean

geometric mean



so


thanks

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