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## #1 2014-01-25 21:19:21

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,062

### trigonometry#2

if

then, find the value of

.

friendship is tan 90°.

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## #2 2014-01-25 23:59:12

bob bundy
Registered: 2010-06-20
Posts: 8,108

### Re: trigonometry#2

hi

So

Note that 24 and 7 are the smaller two of a Pythagorean triple (like 3,4,5) so you can draw a right angled triangle with alpha in it and hence you can express any of the trig ratios using these numbers.

Bob

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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## #3 2014-01-27 03:51:31

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,062

### Re: trigonometry#2

the answer is 2, right?
I don't know what went wrong while i was making it because the question was quite simple.:)
It happens many times with me that i am able to solve the questions which other students find difficult but in a simple question, i go wrong.

friendship is tan 90°.

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## #4 2014-01-27 04:06:47

bob bundy
Registered: 2010-06-20
Posts: 8,108

### Re: trigonometry#2

hi Niharika,

Oh!  You actually want me to work it out as well.

But that means working with actual numbers.

Oh, OK.  As it's for you I'll do it.

.........................................

.........................................

.........................................

Yes, I make it 2 too.

Bob

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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## #5 2014-01-27 04:46:11

niharika_kumar
Member
From: Numeraland
Registered: 2013-02-12
Posts: 1,062

### Re: trigonometry#2

thanks

friendship is tan 90°.

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