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#1 Re: Help Me ! » solve sin(36) » 2006-03-11 01:44:13

hi krassi
degrees no radians
thank u

#2 Re: Ganesh's Puzzles » Algebra » 2006-03-11 01:17:49

hi ganesh
choice (a) or(c) are true

#3 Re: Help Me ! » HELP.. identities and equations » 2006-03-11 00:59:05

thank you rashel
your question is very good
by

#4 Re: Help Me ! » HELP.. identities and equations » 2006-03-11 00:55:32

3cos^2x+3sinx=3 
3(1-sin^2x)-sinx-2=0
3-3sin^2x-sinx-2=0
3sin^2x+sinx-1=0
if sinx=y
3y^2+y-1=0
this equaition very easy (0 degree to 360 degree)

#5 Re: Help Me ! » Equation of a Circle. » 2006-03-11 00:34:10

must be mistakes in your books
what is your name book

#6 Re: Ganesh's Puzzles » Algebra » 2006-03-10 20:27:02

(x^2+1/x^2)-3(x-1/x)-2+2-2=0  then (x+1/x)^2-3(x-1/x)-4=0    if (x+1/x)=y  y=4 and -1  now we solves (x+1/x)=4 and (x+1/x)=-1     these equaition very easy

#7 Re: Ganesh's Puzzles » Algebra » 2006-03-10 20:15:51

(x
+1/x^2)-3(x-1/x)-2+2-2=0

#9 Help Me ! » solve sin(36) » 2006-03-09 19:45:03

amonjezi
Replies: 5

hi!
please solve this problem!

sin(36)?
without calculator!shame

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