What are surds? I'm writing this because it said that it needs twenty characters.
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Surds are numbers left in 'square root form' (or 'cube root form' etc). They are therefore irrational numbers. The reason we leave them as surds is because in decimal form they would go on forever and so this is a very clumsy way of writing them.
Example:
1)√2 (square root of 2) can't be simplified further so it is a surd.
2) 7, 3)√10, 4)√12 , 5)172/3, 6)595/7, 7)2/13 is pure surd .
8)√45 ,9)√32 , 10) √3 11) √5
12)√15
13)√17
14)√18. 15) 4√729. 16)5√729. 17) (16)^25
18) 2√3 / 11
19), ∛7
20)5√3 + √2
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