document.write( "Question 215630: solve sin(theta) = -1 for all real values of (theta) \n" ); document.write( "

Algebra.Com's Answer #162915 by RAY100(1637) $\"\"$ $\"About$

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sin(theta) =-1,,,,,taking arc sin
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\n" ); document.write( "theta = -90
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\n" ); document.write( "from base of 360, angle = 360-90 = 270,,,,,check sin 270 = -1,,,ok
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\n" ); document.write( "from base of 180 , angle = 180-90=90,,,,,,checking sin 90 = +1,,,,not ok
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\n" ); document.write( "Therefore theta is 270 degrees, plus all rotations adding 360 degrees
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