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i just wana know proof of angle of intersection of two circle in cordinate geometry ..........interms of cosine angle

iย  just wana knowย  proof of angle of intersection of two circle


in cordinate geometry ..........interms of cosine angle

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1 Answers

vikas askiitian expert
509 Points
13 years ago

at first find the point of intersection of curves....let it be A..

 now make a tangent to the curve separately at this point ...

there will be 2 tangents with different slopes...let slope of tangents are

m1,m2 respectively...

then we have

                     tan@=m2-m1/1+m1m2

  @ is the angle bw tangents and it is called angle of intersection of two curves.....

   sec2@ =(1+tan2 @)

     from here calculate cos@

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