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The value of (3+2sqrt(2))^(-3)+(3-2sqrt(...

The value of `(3+2sqrt(2))^(-3)+(3-2sqrt(2))^(-3)` is

A

A) `189`

B

B) `180`

C

C) `108`

D

D) `198`

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The correct Answer is:
D
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KIRAN PUBLICATION-POWER, INDICES AND SURDS-Type -IV
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