A student studying multiplication of variables for the first time got confused because he found two expressions of multiplication written in two differentways-1 b - 2 - a2 2 abWhich of them are correct-A- 2 ab is the only correct formB- Both are correct-C- None of them are correct-D- b - 2 - a is the only correct form

The correct option is B Both are correct. nbsp;In algebra, 2ab means 2 × a × b i.e the product of 2, a and nbsp; b It is not necessary to explicitly show ...

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Standard VI

Mathematics

Algebraic Expressions

A student stu...

Question

A student studying multiplication of variables for the first time got confused because he found two expressions of multiplication written in two different ways:

(1) $b \times 2 \times a$ (2) $2 a b$
Which of them are correct?

b \times 2 \times a

is the only correct form

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2 a b

is the only correct form

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Both are correct.

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None of them are correct.

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Solution

The correct option is C Both are correct.
In algebra, $2 a b$ means $2 \times a \times b$ i.e the product of $2, a a n d b$

It is not necessary to explicitly show the multiplication operator or symbol.

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A student studying multiplication of variables for the first time got confused because he found two expressions of multiplication written in two different ways: (1) b×2×a (2) 2ab Which of them are correct?

The correct option is C Both are correct. In algebra, 2ab means 2×a×b i.e the product of 2, a and b It is not necessary to explicitly show the multiplication operator or symbol.

A student studying multiplication of variables for the first time got confused because he found two expressions of multiplication written in two different ways:

(1) $b \times 2 \times a$ (2) $2 a b$
Which of them are correct?

The correct option is C Both are correct.
In algebra, $2 a b$ means $2 \times a \times b$ i.e the product of $2, a a n d b$

It is not necessary to explicitly show the multiplication operator or symbol.