What are the symbols Yin and Yang represent to the Qin dynasty?

Yin and yang (or 陰 and 陽 in traditional Chinese characters) represent duality, or the idea that two opposite characteristics can actually exist in harmony and complement each other.

Explanation:

- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

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do u have any answer choices?