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Can you get a pure surd when you find the difference of two surds Justify answer with an example - Mathematics

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प्रश्न

Can you get a pure surd when you find the difference of two surds Justify answer with an example

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उत्तर

Yes we can get a surd.

Example:

(a) `sqrt(75) - sqrt(48) = sqrt(25 xx 3) - sqrt(16 xx 3) = (5 - 4)sqrt(3) = sqrt(3)`

(b) `sqrt(98) - sqrt(72) = sqrt(49 xx 2) - sqrt(36 xx 2) = (7 - 6)sqrt(2) = sqrt(2)`

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Order of a Surd
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पाठ 2: Real Numbers - Exercise 2.6 [पृष्ठ ६८]

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सामाचीर कलवी Mathematics [English] Class 9 TN Board
पाठ 2 Real Numbers
Exercise 2.6 | Q 5. (ii) | पृष्ठ ६८
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