Which expression is equivalent to cos( pi/2+ r) for all values of r?
sin(r)
cos(r)
-sin(r...
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Mathematics, 30.10.2020 02:30 gmedisa08
Which expression is equivalent to cos( pi/2+ r) for all values of r?
sin(r)
cos(r)
-sin(r)
-cos(r)
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Answers: 1
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