True or False:
`Q uu Z = Q`, where Q is the set of rationals and Z is the set of integers.

Let A = Q xx Q , where Q is the set of all rational numbers and * be a binary operaton on A defined by (a,b) * (c,d) = (ac, ad+b) for all (a,b), (c,d) in A. Then find the identify element of * in A.

If R is the set of real numbers and Q is the set of rational numbers, then what is R-Q?

True or False R.Q. for malic acid is less than one.

The set A uu A’ is:

State whetherthe following are true or false. Justify your answer. :- The value of sin q increases as q increases.

State whetherthe following are true or false. Justify your answer. :- The value of cos q increases as q increases.

The value of 1.999 in thr form p/q, where p and q are integers and qne0 is

Write the set of all vowels in the English alphabet which precede q.

Let ∗ be a binary operation on the set Q of rational numbers as follows: a*b=a-b find is it associative?