√(x-1y)√(y-1z)√(z-1x) এর মান কত?

A    x

B    y

C    1

D    z

Solution

Correct Answer: Option C

√(x-1y).√(y-1z).√(z-1x)
= √x/y .√y/x . √(z/x
= √1
=1

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