EXERCISE If A={1,2,3,4} and B = {1,2,3,5,6), then find An B and B n A. Are they If A= {0,2,4], find An 0 and An A. What did you notice from the result? IfA= {2,4,6,8,10} and B = {3,6,9,12, 15), find A-B and B-A. If A and B are two sets such that Ac B then what is AU B? Explain by givil example. Let A= {x:x is a natural number}, B = {x:x is an even natural number C= {x:x is an odd natural number} and D= {x:x is a prime number} Find An B, An C, AD, B nc, Bn D and CD. IfA= {3, 6, 9, 12, 15, 18, 21}, B = {4, 8, 12, 16, 20), C = {2, 4, 6, 8, 10, 12, 14, 16; and D= {5, 10, 15, 20), find (i)A-B (ii) A-C (iii) A-D (iv) B-A
Answers
Answer:
1. Which of the following statements are correct in relation to
the adjacent figure?
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1) Light is traveling from denser medium to rarer medium.
2) the refracted ray is away from the normal.
3) A is rarer medium and B is denser medium.
4) angle of refraction is greater than angle of incid
A) 1,2,3
B) 2,3,4
C) 1,3,4
D) 1,2,4