Which options describe chinese developments in mathematics?

(select all that apply.)

a. the first chinese book about mathematics, nine chapters on the mathematical art, was composed before 200 bc.

b. the han dynasty invented calculus, even though sir isaac newton has been given credit in most history books.

c. the chinese discovered the ratio of a circle’s circumference to its diameter, known as pi (π), centuries before the greek empire.

d. prior to inventing numbers, the chinese method of number writing used clusters of short vertical or horizontal lines for digits.

The correct answers are A) the first Chinese book about mathematics, Nine Chapters on the Mathematical Art, was composed before 200 BC and B) the Han Dynasty invented calculus, even though Sir Isaac Newton has been given credit in most history books.

The options that describe Chinese developments in mathematics are the first Chinese book about mathematics, Nine Chapters on the Mathematical Art, was composed before 200 BC and the Han Dynasty invented calculus, even though Sir Isaac Newton has been given credit in most history books.

Historians consider that the Chinese developed its mathematics by the 11th century. They worked with decimals, negative numbers, algebra, geometry, and trigonometry. The Chinese people were smart enough to work with many areas in mathematics that could apply in many aspects of their life.

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the emancipation proclamation was the aim of the war change to include the freeing of slaves in addition to preserving the union. the 13th amendment, which abolished slavery in the u.s. was passed on december 6th 1865.

as promised, lincoln waited to unveil the proclamation until he could do so with success from the union military advance. on september 22nd 1862, after a victory at antietam, he publicly announced a preliminary emancipation proclamation, declaring all slaves free in the rebellious states as of january 1st 1863.