Question

Which of the following is not a surd? Choose the correct alternative answer for the question given below.
(A) √7
(B) ∛17
(C) ∛64
(D) √193

Answer 1

Option (c) is correct....

Cube root 64 = 4 as 64 is cube of 4, which is rational

Answer 2

(C) ∛64

(C) ∛64 is not a surd

∛64 is not a surd because ∛64 =4 , and 4 is a rational number.

Surds are numbers that have been left in square root form and are utilised when precise calculations are necessary. They are figures that, if expressed in decimal form, would last forever.

The various surd varieties are as follows:

• Simple Surds - A simple surd is a surd that only contains one phrase. For instance: 2, 5,...
• Pure Surds are fully unreasonable Surds. Instance: 3
• Similar Surds are those that share the same common surds component.
• Surds that can be expressed as a combination of a rational number and an irrational number are known as mixed surds.
• Compound Surds: A mathematical expression created by adding or subtracting two or more surds.
• Surds known as binomial surds are constructed from two other surds.

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