Question 388703
The value of cos pie/3 - sin 3pie/2 is 
a)1 1/2
b)1/2
c)-1 1/2
d)- 1/2 
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cos(pi/3) = 1/2
sin(3pi/2) = -1
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1/2 - (-1) = 1.5
a) 1 1/2