Rational number and irrational number ।Class 9 math #shorts

Assertion : 5-sqrt(2)=5-1.414=3.586 is an irrational number . Reason : The difference of a rational number and an irrational number is an irrational number .

.Let a be a rational number and b be an irrational number. Is ab necessarily an irrational number? Justify your answer with an example.

The number log _(2)7 is (1990,2M) an integer (b) a rational number an irrational number (d) a prime number

Multiplication of a non-zero rational number with an irrational number is an irrational number.

Is pi a rational or an irrational numbers?

If x be a rational number and y be an irrational number, then :

Prove that the sum of or the difference between, a rational number alpha and an irrational number beta is an irrational number.

Write a rational number and an irrational number between 1 and 2.