Calculate A-B+C*D
[6520] Calculate A-B+C*D - Look at the series (1, 5, A, 58, 179, 543, 1636, 4916, 14757, C, B, D, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A-B+C*D! - #brainteasers #math - Correct Answers: 31 - The first user who solved this task is Nasrin 24 T
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Calculate A-B+C*D

Look at the series (1, 5, A, 58, 179, 543, 1636, 4916, 14757, C, B, D, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A-B+C*D!
Correct answers: 31
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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At a local coffee bar, a young woman was expounding on her idea of the perfect mate to some of her friends.
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Hendrik Willem Bakhuis-Roozeboom

Died 8 Feb 1907 at age 52 (born 24 Oct 1854).Dutch physical chemist who publicized Gibbs's phase rule throughout Europe. Having originally heard about it from Van der Waals, Bakhuis-Roozeboom converted Gibbs theory into practice. Whereas Gibbs had rarely experimented, Bakhuis-Roozeboom made all sorts of measurements that served to prove the validity of the phase rule, and in addition, worked out the details of its application to many individual cases. The modern chemistry of alloys benefits greatly from his amplification of the understanding of the phase rule*. In 1899, he and Albert Ladenburg demonstrated, independently of each other, when an inactive separable substance will be a racemic compound or mixture of the inactive compounds.[Image: a Roozeboom diagram]
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