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

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

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 product of a rational number and an irrational number is

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

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

Write a rational number and an irrational number between 1 and 2.

Let the solution of the equation 5^(1+(log)_(4)x)+5^(-1-1(log)_(4)x)=(26)/(5) be a and b,a>b, then the value of (a)/(b) is a.an odd number b.a rational number c.an irrational number d.a prime number