Advertisements
Advertisements
प्रश्न
Classify the following number as rational or irrational with justification:
`(1 + sqrt(5)) - (4 + sqrt(5))`
उत्तर
`(1 + sqrt(5)) - (4 + sqrt(5))`
= `1 - 4 + sqrt(5) - sqrt(5)`
= – 3
Hence, it is a rational number.
APPEARS IN
संबंधित प्रश्न
Are the square roots of all positive integers irrational? If not, give an example of the square root of a number that is a rational number.
In the following equation, find which variables x, y, z etc. represent rational or irrational number:
w2 = 27
Prove that of the numbers `3/sqrt(5)` is irrational:
Write a pair of irrational numbers whose product is irrational.
Compare the following:
`root(3)(48) and sqrt(36)`
The sum of two irrational numbers is always ______.
The product `root(3)(2) * root(4)(2) * root(12)(32)` equals to ______.
Classify the following number as rational or irrational with justification:
`3sqrt(18)`
Classify the following number as rational or irrational with justification:
`sqrt(9/27)`
Show that x is irrational, if x2 = 0.009.
