MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Surds

Let x=√50+7...

Question

Let $x = (\sqrt{50} + 7)^{2 / 3} - (\sqrt{50} - 7)^{2 / 3}$

A

x = 2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

x = 3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

x

is a rational number, but not an integer

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

x

is an irrational number

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $x$ is an irrational number

Suggest Corrections

thumbs-up

0

Similar questions

Let $x = (\sqrt{50} + 7)^{\frac{1}{3}} - (\sqrt{50} - 7)^{\frac{1}{3}}$

Q. Give an example of a number x such that x² is an irrational number and x³ is a rational number.

Q. If the zeros of the polynomial x³ − 3x² + x + 1 are a −d, a and a + d, then a + d is

(a) a natural number
(b) an integer
(c) a rational number
(d) an irrational number

Q. Are the following pairs of statements negations of each other?
(i) The number

x

is not a rational number
The number

x

is not an irrational number
(ii) The number

x

is a rational number
The number

x

is an irrational number

Q. Are the following pairs of statements are negation of each other:
(i) The number x is not a rational number.
The number x is not an irrational number.
(ii) The number x is not a rational number.
The number x is an irrational number.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Surds and Rationalization of Surds

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Standard IX Mathematics

Join BYJU'S Learning Program

CrossIcon