Question

value of sgn ( sgn 2.5 ) equals​

Answer 1

Given that,

A number 2.5

To find,

The value of 2.5

Solution,

We have a number 2.5. Basically, we need to simplify it. There is a decimal between 2 and 5.

We can write it as :

$2.5=\dfrac{25}{10}$

We can write, 25 = 5×5 and 10 = 2×5

So,

$\dfrac{25}{10}=\dfrac{5\times 5}{2\times 5}$

5 is present at the numerator and the denominator. SO,

$2.5=\dfrac{5}{2}$

So, the value of 2.5 is 5/2.