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If [bara barb barc]=2,baraxxbarb=barc,ba...

If `[bara barb barc]=2,baraxxbarb=barc,barbxxbarc=2bara` then show that `barcxxbara=barb`

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If barA=baraxxbarb,barB=barbxxbarc,barC=barcxxbara then barAxx(barBxxbarC), barB(barCxxbarA),barCxx(barAxxbarB) are

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