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If one end of a diameter of the circle `x^(2)+y^(2)-4x-6y+11=0` is (3, 4), then find the coordinates of the other end of the diameter.A. `(2,1)`B. `(1,2)`C. `(1,1)`D. None of these |
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Answer» Correct Answer - B The centre of the given circle `x^2+y^2-4x-6y+11=0` is `(2,3)` , Let the other end of diameter be `(x_1y_1)`, Since , centere `=((x_1+3)/2,(y_1+4)/2)` `therefore (2,3)=((x_1+3)/(2),(y_1+4)/(2))` `rArr 2=(x_1+3)/(2),3=(y_1+4)/(2)` `therefore x_1=1,y_1=2` Hence , coordinates of other end of the diameter is `(1,2)` . |
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