What's the algebraic expression for 5,9,13,17,21
1 answer:
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The 
symbol means intersection, so everything that is in both sets, and the 
symbol means union, so the two sets combined.
So the answer is A.
So the answer is A.
Given that , we have
, so that
Take the derivative and find the critical points of :
Take the second derivative and evaluate it at the critical point:
Since is positive for all
, the critical point is a minimum.
At the critical point, we get the minimum value .