SOLUTION: calculate the value of A (i) (SinA-1 )( 2cosA-1)=0

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Question 642223: calculate the value of A (i) (SinA-1 )( 2cosA-1)=0
Answer by Alan3354(69443) About Me  (Show Source):
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calculate the value of A (i) (SinA-1 )( 2cosA-1)=0
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It's already factored.
sin - 1 = 0
sin = 1
A = 90 ± n*360 degrees
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2cos = 1
cos = 1/2
A = 60 ± n*360 degrees
A = 300 ± n*360 degrees