[2sqrt(3)" is "],[[" (a) an integer "," (b) a rational number "],[" (c) an irrational number "," (d) a whole number "]]

3. 27 is (a) an integer (b) a rational number (c) a natural number (d) an irrational number

The number (log)_2 7 is (1990, 2M) (a) an integer (b) a rational number (c) an irrational number (d) a prime number

3.27is (a) an integer (b) a rational number (c) a natural number (d) an irrational number

The number (log)_2 7 is (1990, 2M) ,a) an integer (b) a rational number ,c) an irrational number (d) a prime number

If f(x)=cosx+cosa x is periodic function, then a must be (a)an integer (b) a rational number (c)an irrational number (d) an even number

If f(x)=cos x+cos ax is periodic function, then a must be (a)an integer (b) a rational number (c)an irrational number (d) an even number

The number log _(2)7 is (1990,2M) an integer (b) a rational number an irrational number (d) a prime number

(log)_4 18 is (a) a rational number (b) an irrational number (c) a prime number (d) none of these

Every rational number is also an integer (b) a real number a natural number (d) a whole number

(log)_4 18 is a rational number (b) an irrational number (c)a prime number (d) none of these