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## Main Question or Discussion Point

i would need help with this integral:

[tex] \int_a^{\infty}\int_a^{\infty}dxdyF(y/x) [/tex]

now i make the change of variable y/x=u x=v then what would be the new integration limits?..thanks.

where a can be 0 or 1

[tex] \int_a^{\infty}\int_a^{\infty}dxdyF(y/x) [/tex]

now i make the change of variable y/x=u x=v then what would be the new integration limits?..thanks.

where a can be 0 or 1

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