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When the coordinate axes are rotated abo...

When the coordinate axes are rotated about the origin in the positive direction through an angle `(pi)/(4)` if the equation `25x^(2)+9y^(2)=225` is transformed to `alpha x^(2)+beta xy+gamma y^(2)=delta` then `(alpha+beta+gamma-sqrt(delta))^(2)= `

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