If `tantheta=sqrt n`, where `n in N, >= 2`, then `sec2theta` is always (a) a rational number (b) an irrational number (c) a positive integer (d) a negative integer

The 10 th term of (3-sqrt((17)/(4)+3sqrt(2)))^(20) is (a)a irrational number (b)a rational number (c)a positive integer (d)a negative integer

sqrt(2)backslash s backslash a/ an rational number (b) natural number irrational number (d) integer

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) an integer (b) a rational number an irrational number (d) a prime number

If a^2 = 23/25 , then a is: (a) rational (b) irrational (c) whole number (d) integers

If n is a positive integer,then (sqrt(3)+1)^(2n)-(sqrt(3)-1)^(2n) is (1) an irrational number (2) an odd positive integer (3) an even positive integer (4) a a rational number other than positive integers

Which of the following is a correct statement? Sum of two irrational numbers is always irrational Sum of a rational and irrational number is always an irrational number Square of an irrational number is always an irrational number Square of an irrational number is always a rational number Sum of two rational numbers can never be an integer

If cos x + sec x = 2, then what is cos ^(n) x + sec ^(n) x equal to, where n is a positive integer ?

The number 0.318564318564318564 is: a natural number (b) an integer a rational number (d) an irrational number