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OpenStudy (anonymous):
what are the following inequality will cover sin(x+y)>0
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OpenStudy (anonymous):
Sine > 0 between 0 and 180º i.e. 0 < x+y < 180º
OpenStudy (anonymous):
hey but sin x at x=180 is not zero alone
OpenStudy (anonymous):
there are other angles also at which sin is zero
OpenStudy (anonymous):
? Not sure what you mean.
OpenStudy (anonymous):
like 360 ,720,540......
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OpenStudy (anonymous):
Yes, it is periodic, so you can add multiples of 360º
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