[MOVED] confused on sin(-32pi/9): expression w/ same value

elisabeth

New member
Joined
Oct 28, 2007
Messages
3
use the period function to select the expression tht has the same value as the given expression.

sin(-32pi/9)

a) sin 2pi/9
b) sin 5pi/9
c) sin pi/9
d) sin 4pi/9
 
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