Example 13 - Chapter 1 Class 9 Number Systems (Term 1)
Last updated at July 11, 2018 by Teachoo
Examples
Example 1 (i)
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Example 1 (ii) Deleted for CBSE Board 2022 Exams
Example 1 (iii) Important Deleted for CBSE Board 2022 Exams
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Example 13 You are here
Example 14
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Example 16 (i) Important
Example 16 (ii)
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Example 16 (iv)
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Example 21 (i)
Example 21 (ii)
Example 21 (iii) Important
Example 21 (iv) Important
Transcript
Example 13 Add 2 √2 + 5 √3 and √2 - 3 √3 . Here, both numbers have root in it So, we combine the numbers with the same root Combining 2 √2 & √2 and 5√3 & 3 √3, and then solving 2 √2 + 5 √3 + √2 – 3 √3 = (2 √2 + √2) + (5√3 – 3 √3) = √2 (2 + 1) + √3(5 – 3) = 3 √2 + 2 √3
