Question

please answer this question

1. If A ⊂ B then (a) a ∈ A ⟹ a ∈ B (b) a ∈ A ⟹ a ∈ B

(c) a ∈ A ⟹ a ∈ B (d) a ∈ B ⟹ a ∈ A

2. The number of subsets of a set containing 5 elements is

(a) 10 (b) 25 (c) 16 (d) 32

3. Which of the following is NOT TRUE

(a) the collection of all even integers is an infinite set

(b) A = { x :

2= 25, x∈ N} is a single-ton set.

(c) { y : y is a point common to any two parallel lines} is a null set

(d) A team of best boys of class -11 is a finite set

4) Range of the function f(x) =

− 2

is

(a) R (b) R – {2} (c) R – {-2} (d) R – {1}

5) let A = {1, 2, 3, …, 14} a relation R is by R = {(x, y) :3x – y = 0}

the range of the relation (a) {2, 4,6, …14} (b){3, 6, 9, 12}

(c) {1, 2, 3, 4} (d) {(1,3), (2, 6), (3, 9),(4 , 12) }

6) which of the following is a function?

(a) {(1, a), (5, e),(9, i), (11, k)} (b) {(25, 5), (49, 7) (25, - 5)}

(c) {(2,3), (12, 13) (3, 4), (2, 5) (d) {(a, 1), (b, 2), (c, 3)(a,4)

7) Radian measure of 520⁰ (a) 14

9

(b) 24

9

(c) 44

9

(d) 26

9



8) tan[ 3

2

+ ] is (a) – tan (b) tan (c) cot (d) – cot

9) principal solution of sin x = 0.5 (a) 11

6

(b) 11

3

(c) 13

6

(d) 15

6



10) general solution of tan x = 0

(a) x = 2n (b) x = (2n+1)

2

(c) x = n (d) x = (2n+1) ​

Answer 1

Answer:

I don't know how to solve this

Step-by-step explanation:

it is a hard sum because I am a child