bshonso1nga
bshonso1nga bshonso1nga
  • 02-09-2016
  • Mathematics
contestada

Determine all points of intersection: y=cosx and y=sinx in the first quadrant

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meerkat18
meerkat18 meerkat18
  • 05-09-2016
So the question is asking to determine all points of intersection, and base on my research and further computation about the said question, the possible answer would be y=cos(x), sin(x)=cos(x),  sin2(x)=cos2(x), sin2(x)=1−sin2(x),  sin2(x)+sin2(x)=1,  2sin2(x)=1, sin2(x)=1/2, sin(x)=√1/2, sin(x)=√2/2. I hope this would help 
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