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Grade: 11
        
line x+y=7 cuts the circle x^2+y^2-2x-4y-4=0 with center c at a and b if p is on ab such that anglecpa=45 then pa+pb/root2 is 
9 months ago

Answers : (1)

vibha
16 Points
							
c=(1,2),r=3
prependicular distance from center(1,2) to line x+y-7=0 is 2root2
since point p consist on line ab so using pythagorous theorme 
pa+pb/root2=root2
9 months ago
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