(-2)∧2002+(-2)∧2001

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(-2)∧2002+(-2)∧2001

(-2)∧2002+(-2)∧2001
(-2)∧2002+(-2)∧2001

(-2)∧2002+(-2)∧2001
(-2)^2002+(-2)^2001 =2×2^2001-2^2001 =(2-1)×2^2001 =2^2001