(A) John Napier (X)
(B) William Oughtred ()
(C) Gottfried Leibnitz (X)
(D) Blaise Pascal (X)
Answers: William Oughtred
(A) John Napier (X)
(B) William Oughtred ()
(C) Gottfried Leibnitz (X)
(D) Blaise Pascal (X)
Answers: William Oughtred
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