1.

Which of the following is not a polynomial ?a) ROOT 2 b) xc)1/x1 d) ROOT 3 x + 5

Answer»

( a ) Root 2 is a CONSTANT Polynomial as its DEGREE is zero

( b ) x is a linear polynomial having degree 1 ( as VARIABLE x have power equal to 1 which is a whole NUMBER )

( c ) 1 / x = x ^ - 1 , Here power of variable x is - 1...which is not a whole number...( Degree of a ploynomial always a whole number but -1 is not a whole number...its an integer )...Thus 1 / x is not a ploynomial

( d )( Root 3 )x + 5 is a linear polynomial having degree 1

Thus Ans ( c )



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