Question

3. Which of the following is not irrational?

(a) (2 – √3)2

(b) (√2 + √3)2

(c) (√2 -√3)(√2 + √3)

(d) 2π

4. The product of a rational and irrational number is

(a) rational

(b) irrational

(c) both of above

(d) none of above

5. The sum of a rational and irrational number is

(a) rational

(b) irrational

(c) both of above

(d) none of above

6. The product of two different irrational numbers is always

(a) rational

(b) irrational

(c) both of above

(d) none of above

7. The sum of two irrational numbers is always

(a) irrational

(b) rational

(c) rational or irrational

(d) one

8. If b = 3, then any integer can be expressed as a =

(a) 3q, 3q+ 1, 3q + 2

(b) 3q

(c) none of the above

(d) 3q+ 1

9. The product of three consecutive positive integers is divisible by

(a) 4

(b) 6

(c) no common factor

(d) only 1

10. The set A = {0,1, 2, 3, 4, …} represents the set of

(a) whole numbers

(b) integers

(c) natural numbers

(d) even numbers

11. Which number is divisible by 11?

(a) 1516

(b) 1452

(c) 1011

(d) 1121​

Answer 1

Answer:

d)

a)

Step-by-step explanation:

c)

d)

a)

d)

dont believe my answers