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OpenStudy (anonymous):
For what value(s) of x does sin(x)=1 A)-90 B)270 C)BOTH D)NONE
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OpenStudy (anonymous):
None will be the answer...
OpenStudy (anonymous):
how so ?
OpenStudy (anonymous):
sin(-90) = -1 (Because sin(-x) = -sinx Sin(270) = -1 (because this value is in 3rd Quadrant and in 3rd Quadrant, Sin is Negative.. So, None will be the answer...
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