Question

(A) (i) and (iii)
(B) Only (11)
(C) (i) and (ii)
(D)
Which of the following sets are null sets?
i) A = { x:x< 1 and x > 3}
IT) B = { x: x² = 9 and 3x = 7}
iii) C = { x:x°- 1 = 0, XER}
iv) D = {x :x is an even primer
(A) (i) and (iii)
(B) (i) and (ii)
(C) (ii) and (iv)
(D)
If A = {2, 3, 4, 5, 6) then which of the following is correct
(A) 1 E A
(B) 2 E A
(C) 3 E A
(D)
Which of the following is not a singleton set?
(A) { x: [x] = 5, XEN}
(B) {x: |x| = 6, xe z}
(C) { x: x² + 2x + 1 = 0, XEN}
(D) { x:x² = 7, XEN}
Which of the following is an empty set?
(A) {x :x e Rand x? - 1 = 0 }
(B) {x:xe R and x² + 1 = 0 }
(C) {x:XER and x? - 9 = 0 }
(D) {x:x E R and x = x + 2 }
PDF
Maths Test 24-10-....pdf
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Answer 1

Answer:

A) (i) and (iii)

(B) Only (11)

(C) (i) and (ii)

(D)

Which of the following sets are null sets?

i) A = { x:x< 1 and x > 3}

IT) B = { x: x² = 9 and 3x = 7}

iii) C = { x:x°- 1 = 0, XER}

iv) D = {x :x is an even primer

(A) (i) and (iii)

(B) (i) and (ii)

(C) (ii) and (iv)

(D)

If A = {2, 3, 4, 5, 6) then which of the following is correct

(A) 1 E A

(B) 2 E A

(C) 3 E A

(D)

Which of the following is not a singleton set?

(A) { x: [x] = 5, XEN}

(B) {x: |x| = 6, xe z}

(C) { x: x² + 2x + 1 = 0, XEN}

(D) { x:x² = 7, XEN}

Which of the following is an empty set?

(A) {x :x e Rand x? - 1 = 0 }

(B) {x:xe R and x² + 1 = 0 }

(C) {x:XER and x? - 9 = 0 }

(D) {x:x E R and x = x + 2 }

PDF

Maths Test 24-10-....pdf