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The equation to the chord joining two po...

The equation to the chord joining two points `(x_1,y_1)a n d(x_2,y_2)` on the rectangular hyperbola `x y=c^2` is: `x/(x_1+x_2)+y/(y_1+y_2)=1` `x/(x_1-x_2)+y/(y_1-y_2)=1` `x/(y_1+y_2)+y/(x_1+x_2)=1` (d) `x/(y_1-y_2)+y/(x_1-x_2)=1`

A

`(x)/(x_1+x_2)+(y)/(y_1+y_2)=1`

B

`(x)/(x_1-x_2)+(y)/(y_1-y_2)=1`

C

`(x)/(y_1+y_2)+(y)/(x_1+x_2)=1`

D

`(x)/(y_1-y_2)+(y)/(x_1-x_2)=1`

Text Solution

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The correct Answer is:
A
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