Original post by znx
ii) I am confused on how to do it.
ii) I am confused on how to do it.
arcsin is the same as (which I'm pretty sure you know)
Use that information.
For part a, add to both sides and divide by 6 to get arcsin on it's own, and use the information I gave you.
For part b, approach it using simply trigonometric identities.
Original post by znx
ii) I am confused on how to do it.
ii) I am confused on how to do it.
Have you considered that can be rewritten in terms of ?
(edited 5 years ago)
Original post by RDKGames
Have you considered that can be rewritten in terms of with a slightly different argument?
y = arccos x
arcsin x = y?
Original post by znx
y = arccos x
arcsin x = y?
arcsin x = y?
Thank you 
Original post by RDKGames
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