kaitlyndconner
kaitlyndconner
20-03-2017
Mathematics
contestada
What is the value of x? sin55°=cosx
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irspow
irspow
20-03-2017
Well from identities we know that sina=cos(90-a), in this case 90-55=35. But if we didn't know this we could also say:
cosx=sin55
x=arcos(sin55))=35
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Anći
Anći
20-03-2017
it should end up like this.
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