Math, asked by cutequeen2154, 6 months ago

Wht is multiplication and division?​

Answers

Answered by manjitdas221
4

Answer:

Multiplication means '×' into krna......aur division means divide krna'÷'

Answered by adityachoudhary2956
179

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Addition, subtraction, multiplication and division are the four basic operations of . They are binary operators. They each take two numbers to produce a third number and are normally written with infix notation:

  • Addition a+b
  • Subtraction a−b
  • Multiplication a×b or a⋅b or ab
  • Division a÷b or a/b or ab

The "minus" symbol for subtraction is sometimes used as a unary operator to get the additive inverse of a number. The of a number, a , is the number b such that:

a+b=b+a=0

a+b=b+a=0 ⇒b=−a

We do not have such a handy notation for the which is the number b such that:

a×b=b×a=1

a×b=b×a=1 ⇒b=1/a

so instead we write b=a−1 somewhat abusing the notation for exponentiation which is not considered one of the basic arithmetic operations:

Exponentiation ab=a×a×⋯×a

One final aside in regard to division, it is best to consider it to be defined in terms of multiplication and the multiplicative inverse:

a÷b≡a×b−1

There is no multiplicative inverse for the additive identity (zero) so, by definition, division by zero is undefined and meaningless (especially for 0÷0 ).

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