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