please explain this for class 4 and 6
Answers
Answer:
not clear................
Answer:
I. Choose the correct answer: 5 x 1 = 5
1. Which of the following is correct?
a) ∅ ⊆ {a, b} b) ∅ ∈ {a,b} c) {a} ∈ { a, b} d) a ⊆ {a, b}
2. If A = { x, y, z} then the number of non – empty subsets of A is ..............
a) 8 b) 5 c) 6 d) 7
3. For any three sets A, B and C ( A – B ) ∩ ( B – C) is ................
a) A only b) B only c) C only d) ∅
4. If ℧ = { x : N and x< 10} A = { 1, 2, 3, 5, 8} and B = { 2, 5, 6, 7, 9 } then n [ ∪
1
] is .............
a) 1 b) 2 c) 4 d) 8
5. If 80 = k 5 then k =
a) 2 b) 4 c) 8 d) 16
6. If 9
= 9
2
3
,ℎ = .....................
a) 2
3
b) 4
3
c)1
3
d) 5
3
7. An irrational number between 2 and 2.5 is ..............
a) 11 b) 5 c) 2.5 d) 8
8. 0. 34 + 0. 34 = ..........................
a) 0. 687 b) 0.687 c) 0. 68 d) 0.687
9. Degree of the polynomial (
3 − 2) (
3 + 1) is ................
a) 9 b) 2 c) 3 d) 6
10. If
51 + 51 is divided by x + 1 then the remainder is ..........................
a) 0 b) 1 c) 49 d) 50መልካም ሌሊትመልካም ሌሊትመልካም ሌሊት