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

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

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

Every point on a number line represents as: (a) a unique real number (b) a natural number (c) a rational number (d) an irrational number

Every point on a number line is represented as: (a) a unique real umber (b) a natural number (c) a rational number (d) an irrational 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

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

The product of a rational number and an irrational number is