Question

Which of the following is surd?

i. √81 4 ii. √25 3 iii. √16 iv. √125​

Answer 1

Step-by-step explanation:

A surd is an expression that includes a square root, cube root or other root symbol. Surds are used to write irrational numbers precisely – because the decimals of irrational numbers do not terminate or recur, they cannot be written exactly in decimal form....

so except root 16 all are surds...

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