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Let x,y,z be positive and x,y,z1 Let Δ=1logxylogxzlogyx1logyzlogzxlogzy1 then numerical value of  is

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detailed solution

Correct option is B

Using change of base formulaloga⁡b=log⁡blog⁡a,a,b>0,a,b≠1we can writeΔ=1log⁡xlog⁡ylog⁡zlog⁡x    log⁡y    log⁡zlog⁡x    log⁡y    log⁡zlog⁡x    log⁡y    log⁡z=0


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