Question

A famous explorer responsible for opening up of Africa to the outside

world

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Answer 1

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David Livingstone

David Livingstone was a Scottish missionary, doctor, abolitionist, and explorer who lived in the 1800s. He sought to bring Christianity, commerce, and “civilization” to Africa and undertook three extensive expeditions throughout much of the continent.....

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Answer 2

A Pythagorean triple consists of three positive integers a, b, and c, such that a2 + b2 = c2. ... The name is derived from the Pythagorean theorem, stating that every right triangle has side lengths satisfying the formula a2 + b2 = c2; thus, Pythagorean triples describe the three integer side lengths of a right triangle