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#1 2011-07-19 21:32:52

plinio
Member
Registered: 2011-07-18
Posts: 1

trigonometry problem (hard)

how to solve this in step by step? Thanks...

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#2 2011-07-19 21:37:20

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,466

Re: trigonometry problem (hard)

hi plinio

Solve it? 

If this is an identity, then  what would you like to do with it?

Or do you just want to simplfy it?  Or evaluate it to a number?

Bob

Last edited by bob bundy (2011-07-19 21:38:50)


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

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#3 2011-07-20 23:40:18

gAr
Member
Registered: 2011-01-09
Posts: 3,479

Re: trigonometry problem (hard)

Hi plinio,

Last edited by gAr (2011-07-20 23:43:30)


"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

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