• Applying SIMPLIFICATION rule for sums such as 865 / √402 (√ symbol is square root) Share to Whatsapp



  • Rationalization method is to be used while solving sums like these
    Rationalization factor for :
    1) 1/√a ------> √a
    2) a + √b -------> a - √b
    3) a - √b ---------> a + √b
    4) √a + √b ----------> √a - √b
    5) √a - √b ------------> √a + √b

  • 865 / √402
    As seen in above Rationalization Methods we can use 1st rule to solve the problem
    Thus 865 / √402 is multiplied the rationalizing factor i.e. √402
    To balance the extra added rationlizing factor we multiply the given ratio by √402 / √402
    Thus the result of (865 / √402) * (√402 / √402) = (865 * √402) / 402
    Thus 865 / √402 = (865 * √402) / 402 = 43.142278786655
    Thus 865 / √402 = (865 * √402) / 402 = 43(round off to nearest integer)

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