How to find sinx/2 if sinx = 9/14 and x in Quadrant 2 using the half angle formula?

M

Mateo Eyoo

New member
How do i to find sinx/2 if sinx = 9/14 and x in Quadrant 2 using the half angle formula
I can only use half angle forumulas, nothing else, any ideas? im stuck
aaaah, okay thanks Min, that really cleared things up, thanks a lot
 
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