Originating in ancient Mesopotamia and later refined in India by the mathematician Brahmagupta, the concept of zero revolutionized mathematics by functioning as both a placeholder and a number in its own right. Prior to this innovation, mathematicians struggled to perform complex calculations without confusing notation. _Brahmagupta also wrote several influential treatises on astronomy, detailing the movements of the planets and the stars._ By defining zero’s mathematical properties—such as the rule that subtracting a number from itself yields zero—ancient scholars paved the way for modern algebra and calculus.
The writer is considering deleting the underlined sentence from the passage. Should the writer make this deletion?
- ANo, because it establishes Brahmagupta's credibility as a scholar, which is necessary to support his mathematical theories.
- BNo, because it provides a transitional link between the history of ancient mathematics and the development of modern science.
- CYes, because it contradicts the earlier claim that zero was developed primarily as a tool for practical commerce.
- Yes, because it introduces a detail about astronomy that is tangential to the paragraph’s focus on the mathematical significance and development of zero.Answer
Answer
The correct answer states that the sentence should be deleted because it introduces a detail about astronomy that is tangential to the paragraph’s focus on the mathematical significance and development of zero.
The correct answer is correct because the paragraph focuses on the mathematical significance and development of zero. The underlined sentence introduces Brahmagupta's unrelated work in astronomy, which diverges from this focus. Deleting it maintains paragraph unity.
Step-by-Step Solution
Key Concept
Evaluating Relevance for Adding or Deleting Content
Estimated Time:1m 15s