Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.f(x, y) = x2 + 100 - 20x cos y; -? < y < ?
A. (10, 0); local maximum
B. (10, 0); local minimum
C. (100, 0); local minimum
D. (10, 0); saddle point
Answer: B
Mathematics
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Find a rational zero of the polynomial function and use it to find all the zeros of the function.f(x) = 3x3 - x2 - 21x + 7
A. {
, 
, - 
}
B. {-3, 
, - 
}
C. {3, 
, -
}
D. {- 
, 
, - 
}
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Graph the function.y = 2 csc (3x)
A. 
B. 
C. 
D. 
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Evaluate the expression.-53
A. 125 B. 15 C. -15 D. -125
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Find the term indicated in the expansion.(x4 + y3)9; 3rd term
A. 25920x28y6 B. 36x28y6 C. 36x11y5 D. 25920x11y5
Mathematics