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Ierofanga [76]
2 years ago
11

What should be the index of x so that the value of x so that it's value will be equal to 1?

Mathematics
2 answers:
bonufazy [111]2 years ago
8 0

Answer:

In our ordinary division, we are clear about the division of a number by the same number. The quotient is always 1 in such case.

For example:-

Divide 4 by 4.

Here,

\frac{4}{4}  = 1

Now let solve the above examples by using the laws of indices.

\frac{4}{4}  =  {4}^{1 - 1}  =  {4}^{0}  = 1

Similarly,

\frac{ {x}^{m} }{ {x}^{m}  }  =  {x}^{m - m}  =  {x}^{0}  = 1

Thus,any base with zero index is equal to 1.

Lyrx [107]2 years ago
6 0

We need to tell the <em>index</em> of <em>x</em> for which <em>x</em> will be 1 , First of all , always remember that <em>index</em> of a number means power of the number or to which power it's raised to, like in <em>2³</em> , 2 is raised to 3 so <em>3 is the </em>index. Also we knows an identity i.e

  • {\boxed{\bf{\dfrac{a^m}{a^n}=a^{m-n}}}}

Let's put , m = n

{:\implies \quad \sf \dfrac{a^m}{a^m}=a^{m-m}}

{:\implies \quad \boxed{\bf{a^{0}=1}}}

Also , you should note that for a = 0 , the given expression becomes <em>0⁰</em> ,which is <em>not defined</em> , so the above expression is <em>true</em> only for {\bf{a\in (-\infty,0)\cup (0,\infty)}}

Now , as we can replace variables , so , if we replace <em>a</em> by <em>x</em> , we get <em><u>x⁰ = 1</u></em> .

<em>Hence , the required index is 0</em>

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