why does arcsin(2x) + arccos(x) = PI / 6?

our teacher wants us to show this using identities, not literally finding a solution for (x)

Printable View

- March 30th 2009, 04:05 PMlazyboy292extra credit
**why does arcsin(2x) + arccos(x) = PI / 6?**

our teacher wants us to show this using identities, not literally finding a solution for (x)

- March 30th 2009, 04:15 PMPlato
- March 30th 2009, 04:37 PMlazyboy292
arcsin 2x = PI/6 - arccos x

2x = sin(PI/6 - arccos x)

thats all ive gotten so far - March 30th 2009, 11:10 PMmr fantastic