Which of these mathematical advances occurred under the guptas during the golden age in india? select all that apply. a. discovered the ratio of pi (∏) b. developed the arabic numeral system c. invented the concept of zero d. originated the idea of calculus

a); and c). During Chandragupta II reign, great impulse was given to arts and science. One of the main scholars of the time was Aryabhata, who came up with the concept of zero and discovered the ratio of pi. He also worked in demonstrating that the earth moves around the sun instead of otherwise.

- Developed the arabic numerals system -

- invented the concept of zero

Explanation:

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question - in the 1900s there were two competing views about the environment that often pitted industrialist and conservationist against one another. how were these two competing views demonstrated by the environmental policies of president roosevelt and president taft?

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the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.