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If A = 1/pi [(sin^(-1)(xpi),tan^(-1)(x/p...

If `A = 1/pi [(sin^(-1)(xpi),tan^(-1)(x/pi)),(sin^(-1)(x/pi),cot^(-1)(pix))]`
`B = 1/pi [(-cos^(-1)(xpi),tan^(-1)(x/pi)),(sin^(-1)(x/pi),-tan^(-1)(pix))] `
then `A-B ` is equal to :

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