Considering the cost of the war and what was gained, do you think the united states

Yes and no. The Korean war had cost many lives for both sides. It was a tug of war between both sides. We push the North all the way back almost completely into China and they pushed us into the Pusan Perimeter. It was our real test to contain Communism. If we didn't enter the war, Korea would've ended up like Vietnam.

-5

Step-by-step explanation:

it is already defined in the problem definition

f(x) = -5 for x=1

so, f(1) = -5

there is not much to think about.