Q. 115.0( 1 Vote )

# Which one of the following is not true?A. When x is not a perfect square, is an irrational numberB. The index form of C. The radical form of D. Every real number is an irrational number

As in

Option A

As we know an irrational number are those number which cannot be represented in simple fraction

Hence they are not perfect square

For example 3 is not a perfect square

also is irrational number

hence A is true

option B

index form of number means power form

as hence B is true

Option C Hence C is also true

Option D

It is not true that every real number is a rational number

For example 2 is real number but not irrational number

Hence D is not true

Hence D is the right answer

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Which one of the following is not true?