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KOMMAREDDY NESHVITHA from NALANDA VIDHYA NIKETAN, VIJAYAWADA

Subject :IMO Class : Class 8

If x = (3^{- 2} - 3^{- 3}), y = (3 ^{- 3} - 3 ^{- 4}) and z = (3^{- 4} - 3^{- 2}) then find the value of 81xyz.

A
B
C
D

answer is a

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