Find the angle intersection of the circle x²+y²-4x-1=0 and x²+y²-2y-9=0
shubham , 8 Years ago
Grade 12
Analytical Geometry> Find the angle intersection of the circle...
1 Answers
manna
Last Activity: 8 Years ago
First factorised two equation so you will get to know the H,K and radious where h,k centre of a circle.
h1=2,k1=0,h2=0,k2=1 radiuos of other circle is 2sqrt2
Intersection Angle Formula
The angle of the triangle is given by formulaθ = sin-1[ sqrt(2P2Q2 + 2P2D2 + 2Q2D2 - P4 - Q4 - D4)/(2PQ) ]
and the angle of intersection by the formula
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