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+1 vote
33.1k views
in Mathematics by (49.1k points)
reopened by

If a and b are real numbers such that (2 + α)4 = a + bα, where α = (–1 + i√3)/2, then a + b is equal to : 

(1) 57 

(2) 33 

(3) 24 

(4) 9

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1 Answer

+2 votes
by (46.9k points)

Answer is (4) 9

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