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sneha sneha Grade: 12
        

if A(3,4) and B is a variable point on the lines modx=6.If AB<=4 then what is the no. of position of B with integral co-ordinates?

7 years ago

Answers : (1)

Askiitians Expert Soumyajit IIT-Kharagpur
28 Points
										

Dear Sneha,


Ans:- Let the point b is (6,k)  { B can not be (-6,k) then the inegulity (1) does not hold}


Then √(3²+(k-4)²<=4..................(1)


or 9+(k-4)²<=16


or  4- √7<=k <=4+ √7


Hence the integral soln are,


k= 2,3,4,5,6


 


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All the best Sneha!!!


 



Regards,


Askiitians Experts


SOUMYAJIT IIT_KHARAGPUR

6 years ago
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