1.

If a1−2aa1−2a + b1−2bb1−2b + c1−2cc1−2c = 12,12, then the value of 11−2a11−2a + 11−2b11−2b + 11−2c11−2c is?

A. 1
B. 2
C. 3
D. 4
Answer» B. 2


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