Question

Choose the correct or the most suitable answer.
1. If A = {(2,y): y=0,3 E R} and B = {(1,4): y = e-",1 R} then n(An B) is
(1) Infinity
(2) 0
(3) 1
(4) 2
2
11. FO

2. If A = {(x,y): y = sin r, I E R} and B = {(x,y): y = cos T, SER} then An B contains
no element (2) infinitely many elements
(3) only one element (4) cannot be determined.
12. TE
13. La
3. The relation R defined on a set A = {0,-1,1.2} by r Ry if |.x2 + y²1 < 2, then which one of the
following is true?
(1) R = {(0,0), (0.-1).(0,1),(-1,0), (-1,1). (1, 2), (1,0)
(2) R-1 = {(0,0), (0.-1),(0,1),(-1,0), (1,0)}
(3) Domain of Ris {0,-1,1,2}
(4) Range of Ris {0,-1,1}
4. If f(x) = x -- 21 + x + 21,3 ER, then
- 2x if x € (-0. - 2]
(1) f(x) = 4 if IE (-2,2
2r if IE (2.0)
2.c if IE(-2,-2)
(2) f(0) = 4x if x € (-2. 2
- 2x if IE (2,00)
- 2x if x € (-0. – 2]
(3) f(x) = - 4x
if IE (-2,2
21 if IE (2,00)
- 2x if x E(-∞, - 2)
(4) f(x)= 2x if Xe(-2.2
23 if IE (2,00)
16. T
17. 1​

Answer 1

Answer:

1.(3)

2.(2)

3.(4)

4.(1)

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