We need to find the product of a number and its reciprocal.
The product of a number and its reciprocal is B) 1.
Let the number be \(x\)
this means its reciprocal will be \(\dfrac{1}{x}\)
Let us multiply these numbers
\(x\times \dfrac{1}{x}\)
This can be also written as
\(\dfrac{x}{x}\)
Any number divided by itself is \(1\).
\(\\\Rightarrow \dfrac{x}{x}=1\)
Hence, the product of a number and its reciprocal is B) 1.
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