Q. 6
Which one of the following is not true?
A. 
is an irrational number
B. 
is an irrational number
C. 0.10110011100011110… is an irrational number
D. 
is an irrational number
Answer :
As we know an irrational number are those number which cannot be represented in a simple fraction
A. √2 cannot be represent in simple fraction hence it is an irrational number
Hence A is true
B. √17 cannot be represent in simple fraction hence it is an irrational number
Hence B is true
C. 0.10110011100011110….cannot be represent in simple fraction hence it is a irrational number . Hence C is true
D. on simplification
= 
Hence is rational number and not irrational.
Hence D is the right answer
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Which one of the following is not true?
Tamilnadu Board Math Term-IIIThe rationlizing factor of 
is
Rationalize the denominator of the following
Rationalize the denominator of the following
is equal to
is equal to
represents the pure surd
The order and radicand of the surd 
are respectively
Which one of the following is not true?
Tamilnadu Board Math Term-III
is equal to
