Math Is Fun Forum

Hopecantid

Member

Registered: 2008-04-08

Posts: 13

Really confusing...

This question just confuses me, I'm not sure what it's getting at...

If

find the value of:

Is it just four?  I know 1/sin is csc, and 1/csc is sin... so I feel like it's just the same question.  Maybe I'm just not understaning if there's something more to it.  Help please? 

Last edited by Hopecantid (2008-04-09 08:11:25)

Daniel123

Member

Registered: 2007-05-23

Posts: 663

Re: Really confusing...

Where did you get this question from? I'm afraid the question is not possible. sinθ + cosθ can never be equal to 4, as both sinθ and cosθ can only take values between (and including) -1 and 1.

Last edited by Daniel123 (2008-04-09 07:59:38)

smellyellie123

Member

Registered: 2006-11-08

Posts: 7

Re: Really confusing...

i'm confused too but i'm not  that good at maths anyway  ( I'm 12 years old and working at level 7 in maths!)

Daniel123

Member

Registered: 2007-05-23

Posts: 663

Re: Really confusing...

Level 7 is very good for someone who is 12 years old. Keep at it

Hopecantid

Member

Registered: 2008-04-08

Posts: 13

Re: Really confusing...

Sorry, my bad, I messed up the first part.  It's supposed to be sin + csc (not sin + cos), but the rest is correct.  Any ideas?

Daniel123

Member

Registered: 2007-05-23

Posts: 663

Re: Really confusing...

You were correct first time, they are the same thing, and so the second is also equal to 4.

Hopecantid

Member

Registered: 2008-04-08

Posts: 13

Re: Really confusing...

Thanks so much, Daniel! 

Daniel123

Member

Registered: 2007-05-23

Posts: 663

Re: Really confusing...

No problem