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Which of the following pair (s) is//are ...

Which of the following pair (s) `is//are` orthogonal ?

A

`16x^(2)+y^(2)=c and y^(16)=kx`

B

`y=x+ce^(-x)and x+2=y+ke^(-y)`

C

`y=Cx^(2)and x^(2)+2y^(2)=k`

D

`x^(2)-y^(2)=C and xy=k`

Text Solution

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The correct Answer is:
A, B, C, D
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