Question

find two rational and irrational numbers between 3 and 4. (class 9th)

Answer 1

a)rational number :
1)(3+4 )/2
=7/2 =3.5
2)(3.5+4)/2
=7.5/2 =3.25
b)irrational number :
1)10/3=3.33....
2)11/3=3.66....
......I hope it will help you. ....

Answer 2

Answer: The two rational numbers between 3 and 4 are 3.5 and 3.75.

Two irrational numbers between 3 and 4 are √11 and √13.

Step-by-step explanation:

Here, the given numbers are 3 and 4,

Since, both 3 and 4 are rational numbers,

Also, the average of two rational number is also a rational number and it is between the numbers

⇒ A rational number between 3 and 4 = Average of 3 and 4

$=\frac{3+4}{2}=\frac{7}{2}=3.5$

Now, both 3.5 and 4 are the rational number,

⇒ A rational number between 3.5 and 4 = Average of 3.5 and 4

$=\frac{3.5+4}{2}=\frac{7.5}{2}=3.75$

Thus, the two rational numbers between 3 and 4 are 3.5 and 3.75.

Now, we know that the square root of prime number is always an irrational number.

The squares of 3 and 4 are 9 and 16 respectively.

And, two prime numbers between 9 and 16 are 11, 13

⇒ Two irrational numbers between 3 and 4 are √11 and √13.