Exercise · ZW-INVERSE-ELEMENT-002 · ★☆☆ Basic
What is the inverse of 3/4 under multiplication?
Choose one option.
Show answer
- C. 4/3
Explanation
Under multiplication, the inverse of 3/4 is 4/3, because (3/4) · (4/3) = 1, which is the multiplicative neutral element.
Review the concept: Inverse element
Given \(a\in G\), an element \(b\in G\) is an inverse of \(a\) if operating in both orders gives the neutral element.
\[a\ast a^{-1}=a^{-1}\ast a=e\]
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