londonbland16 londonbland16
  • 17-05-2018
  • Mathematics
contestada

If P(x,y) is the point on the unit circle defined by real number theta, then cot theta

If Pxy is the point on the unit circle defined by real number theta then cot theta class=

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CastleRook
CastleRook CastleRook
  • 26-05-2018
Given that P(x,y) is a point on a unit circle, then:
opposite=y
adjacent=x
but
cot θ=1/tan θ
and 
tan θ=opposite/adjacent
then
tan θ=y/x
hence
cot θ=1/(y/x)=x/y

Answer: C] x/y
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