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October 7, 2015
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Math
Posted by
Leslie
on
Tuesday, March 6, 2012
at 5:48pm.
Solve each equation for 0≤x<2π
1. (cosX)(cosX+1)=0
2. 2sin^2(X)-3sinX=2
Math -
Henry
, Wednesday, March 7, 2012 at 7:42pm
Since the product = 0,
cosX = 0.
X = 90 Deg.
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