if x= (x:x is a prime number which is less than 15)Y=(y : y is a multiple of 7, 7 <_y <_30)then find i)n (x), ii) n (y) and iii (x-y)
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Step-by-step explanation:
x = {2,3,5,7,11,13}
Y = {7,14,21,28}
1). n(X) = 6
2). n(Y) = 4
3). X-Y = {2,5,11,13}
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