If 0

What you tried to show is this:

If 0 leftarrow A leftarrow pi/2 and sin A + 1= 2 sqrt(1-sin^2(A)), determine the value of sinA






Written better, you probably have:

If  and , determine the value of  . 

Answer by greenestamps(13203)   (Show Source): You can put this solution on YOUR website!
 





Square both sides:








Solve the quadratic equation by factoring:





 OR 


The restriction  means sin(A) has to be between 0 and 1, so....


ANSWER: sin(A) = 3/5


 

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
 If 0 
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Put spaces around the < signs.

If 0 < A < pi/2 and sin A + 1= 2 sqrt(1-sin^2(A)), determine the value of sin(A)

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Use parentheses for sin(A)



 

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