Answer:
x=-3
Step-by-step explanation:
x+9 = 3.2=6
x= 6-9=-3
If you're just focusing on the boundary, it's the circle . Parameterize it by taking and , with . Then reduces to a univariate function :
Then you can find any extrema on the boundary by checking the critical points of .
english plz !!!!!!!!!!
B={x|x is an even whole no less than 9}
Now
1
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The answer is D.72°
hope this helps.