document.write( "Question 910463: im confused on how to evaluate (sin30)^2 - (cos30)^2 can someone help? \n" ); document.write( "

Algebra.Com's Answer #552515 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "(sin30)^2 - (cos30)^2
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document.write( "(1/2)^2 - (√3/2)^2 = 1/4 - 3/4 = -1/2
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document.write( "(cos, sinx) Unit circle Reference
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