$a b c + b c a + c a b$ is a___.

Binomial

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Polynomial

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Trinomial

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Monomial

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Solution

The correct option is D
Monomial

As $a \times b \times c = b \times c \times a = c \times a \times b = a b c = b c a = c a b$ , all the three terms in the given expression are the same.
So they are like terms and hence can be added to get a single term.
$a b c + b c a + c a b = 3 a b c$ or $3 b c a$ or $3 c b a$
So it is a monomial.

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