Q5 of 34 Page 342

Let us prove:

xlogy – logz × ylogz – logx × zlogx – logy = 1

LHS = xlogy – logz × ylogz – logx × zlogx – logy


Now, taking log we have,






Now, RHS = 1


Taking log we have, log 1= 0 =LHS


Therefore, LHS=RHS


Hence, proved.


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