1.

The new equation of the curve 4(x-2y+1)^(2)+9(2x+y+2)^(2)=25, if the lines 2x+y+2=0 and x-2y+1=0 are taken as the new x and y axes respectively is

Answer»

`9X^(2)+4y^(2)=5`
`4x^(2)+9y^(2)=25`
`9x^(2)+4y^(2)=7`
`4x^(2)+9y^(2)=49`

Answer :A


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