document.write( "Question 585134: What is sin^2 θ-1=0 using the interval 0 ≤ θ < 2 π?
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Algebra.Com's Answer #373163 by Alan3354(69443)\"\" \"About 
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What is sin^2 θ-1=0 using the interval 0 ≤ θ < 2 π?
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\n" ); document.write( "It's a question about theta.
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