Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Trig identities

Jan 2006 q8 (b) can someone show their working out for this question and explain
Find all the solutions of theta to one dp in the interval 0 <theta <360 for which
tan^2 theta =4

Original post by sia_x11

Jan 2006 q8 (b) can someone show their working out for this question and explain
Find all the solutions of theta to one dp in the interval 0 <theta <360 for which
tan^2 theta =4

easy
root both sides to get

\tan \theta =2

Edit: supposed to be

\tan \theta =\pm 2

then solve for values

(edited 7 years ago)

username1763791

Original post by thefatone

easy
root both sides to get

\tan \theta =2

then solve for values

Well, you would get

\tan \theta = \pm 2

Solve Tan theta for both positive and negative values

Original post by Foutre en L'air

Well, you would get

\tan \theta = \pm 2

ah yes i missed that thanks for pointing it out, i'll edit it?

username1763791

Original post by thefatone

ah yes i missed that thanks for pointing it out, i'll edit it?

No problem, it's a very easy mistake to make!

Original post by Foutre en L'air

No problem, it's a very easy mistake to make!

That's the kind of mistake which will kill me when i don't get an A* in maths next year :/

OP

Oh my bad i get it now

Quick Reply

Latest

Trending

Trending

Articles for you

How to revise for GCSE Maths: AQA explains what to do

How to revise for GCSE Maths: AQA explains what to do

What is an LLM and how could it benefit your career?

What is an LLM and how could it benefit your career?

Powerful questions business students forget to ask their career advisers

Powerful questions business students forget to ask their career advisers

Why I chose a law degree and what studying law was like

Why I chose a law degree and what studying law was like