SURDS

  SURDS.

   A surd is an irrational number that cannot be expressed as a ratio of two integers in the form x/y, such that y is not equal to zero.
Their exact values cannot be determined,they can only be approximated.

   Examples are √(2),√(11),π,etc.

RULE OF SURDS

 (i) √(a×b) = √a ×√b