The national debt of the united states is 970 billion dollars. the 1980 census showed 226,504,825 people. about how many dollars
1 answer:
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The expression for (r-s)(x) is found by subtracting s from r. That difference is 
. The expression for (r+s)(x) is found by adding them, which is 
. Now we are told to evaluate (r*s)(x) which means they want us to multiply those and state the "new" expression that results. 
. There you go!
Answer:
Step-by-step explanation:
The unit circle has the parametric equation:
where in our case is the terminal side of the angle in standard position.
We substitute to get:
is the required point.