SOLUTION: Please help me: 1. Which of the shaded regions below represent the graph of {(x,y)(y<=x and y>=0)}? 2. if x is an acute and sin x= 1/2, then cos x= ? Thanks

Question 383473: Please help me:
1. Which of the shaded regions below represent the graph of {(x,y)(y<=x and y>=0)}?
2. if x is an acute and sin x= 1/2, then cos x= ?
Thanks
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
1. Which of the shaded regions below represent the graph of {(x,y)(y<=x and y>=0)}?
No figure is shown.
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2. if x is an acute and sin x= 1/2, then cos x= ?
cos^2 = 1- sin^2 = 1 - 1/4 = 3/4

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