Question

Let A=(3,6,12,15,21) B=(4,6,12,16,21) then A-B is
a) (3,15) b) (4,16) c) (6,12,21) d) (3,4,15,16)​

Answer 1

➡ A = {3,6,12,15,21} & B = {4,6,12,16,21}

➡ A - B = {3,6,12,15,21} - {4,6,12,16,21}

➡ A - B = {3,15}

So, the correct option is ″ a ″ .

Step-by-step explanation:

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