SET-1

Consider the following statement I. The set of positive powers of 2 is closed under multiplication. II. The set [1,0,-1] is closed under multiplication. III. The number 35 has exactly four divisors. IV. The set [1,0,-1] is closed under addition. Of the above statement

Solution set of 1/(x^(2)-x+1) is

Write of the following sets in the set builder form: {-1,1}

Represent each of the following sets in the Roster form and write the cardinal number of each set. S_(1)= Set of letters in the word ALLAHABAD "

Solution set of (1)/(x^(2)-x+1)>=4 is

Set of all real numbers between -1 and 1 in set builder form.