Question 440978
 how do i rewrite the following trigonometric functions using angles between 0 and 90 degrees? 
sin 150 degrees= sin 30 degrees
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sin 150 degrees= cos 60 degrees
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csc 45 degrees= sec 45 degrees
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cos(-30) degrees= cos (30) degrees
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cos(-30) degrees= sin (60) degrees
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cot(75) degrees= tan (15) degrees
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Cheers,
Stan H.