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? >>

Arcsin x

Can we think of angle y in quadrant II? As its in interval [0, pi]

Original post by mystreet091234

Can we think of angle y in quadrant II? As its in interval [0, pi]

Yes.

OP

Original post by HapaxOromenon

Yes.

Thanks for replying

But how?

Original post by mystreet091234

Thanks for replying

But how?

Actually scrap that and just do this:
Let arccos x = y.
Then x = cos y = sin(π/2 - y) (you can verify this by the subtraction formula for cos)
and so arcsin x = π/2 - y by taking arcsin of both sides.

(edited 8 years ago)

Quick Reply

Latest

Trending

Trending

Articles for you

Sign up to be the first to know when full-time undergraduate student finance applications go live

Sign up to be the first to know when full-time undergraduate student finance applications go live

LaTex

How to revise for GCSE Psychology exams: AQA explains what to do

How to revise for GCSE Psychology exams: AQA explains what to do

How to revise for A-level Psychology exams: AQA explains what to do

How to revise for A-level Psychology exams: AQA explains what to do