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If (x/a)+(y/b)=1 and (x/c)+(y/d)=1 inter...

If `(x/a)+(y/b)=1` and `(x/c)+(y/d)=1` intersect the axes at four concylic points and `a^2+c^2=b^2+d^2,` then these lines can intersect at, `(a , b , c , d >0)` `(1,1)` (b) `(1,-1)` `(2,-2)` (d) `(3,3)`

A

(1 , 1)

B

(1, -1)

C

(2,-2)

D

(3,-2)

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The correct Answer is:
A, B, C
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