## Precalculus: Mathematics for Calculus, 7th Edition

a.) $B\cup C = [2, 4, 6, 7, 8, 9, 10]$ b.) $B\cap C = [8]$
$Find$ $the$ $indicated$ $set$ $if:$ $A = [1, 2, 3, 4, 5, 6, 7]$ $B = [2, 4, 6, 8]$ $C = [7, 8, 9, 10]$ a.) $B\cup C$ We find the union of the variables for B and C. Place the units in chronological order $B\cup C = [2, 4, 6, 7, 8, 9, 10]$ b.) $B\cap C$ We find what units in B and C intercept each other. We determine that B and C only intercept at 8 $B\cap C = [8]$