# Q.1 Find the union of each of the following pairs of sets :(iv)  A = {x : x is a natural number and 1 $<$ x $\leq$6 }       B = {x : x is a natural number and 6 $<$ x $<$10 }

Here,

A = {2,3,4,5,6}

B = {7,8,9}

$\cup$ B = {2,3,4,5,6,7,8,9}

or it can be written as A $\cup$ B = {x : x is a natural number and 1$<$ x $<$10 }

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