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If a^2+b^2+c^2+96= 8(a+b-2c), then sqrt...

If `a^2+b^2+c^2+96= 8(a+b-2c)`, then `sqrt(ab-bc+ca)` is equal to :
यदि `a^2+b^2+c^2+96= 8(a+b-2c)` है, तो `sqrt(ab-bc+ca)` का मान किसके बराबर होगा ?

A

`2 sqrt3`

B

4

C

6

D

`2 sqrt2`

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