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From Karnataka Open Educational Resources
No change in size ,  10:46, 12 August 2014
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Example: <math>2\sqrt{5}+3\sqrt{5}-\sqrt{5}</math><br>
 
Example: <math>2\sqrt{5}+3\sqrt{5}-\sqrt{5}</math><br>
 
4.Multiplication of surds.
 
4.Multiplication of surds.
Example: <math>\7sqrt{3}  X  2\sqrt{5}</math><br>
+
Example: <math>7\sqrt{3}  X  2\sqrt{5}</math><br>
    
===Activities===
 
===Activities===