Find the reciprocal of the number.-8
A. 8
B. 0
C. 
D. - 
Answer: D
Mathematics
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Find all the second order partial derivatives of the given function.f(x, y) = xye-y2
A. 
= 0; 
= 2xye-y2(2y2 - 3); 
= 
= e-y2(1 - 2y2)
B. 
= ye-y2; 
= 2xye-y2(y2 - 1); 
= 
= e-y2(1 - y2)
C. 
= ye-y2; 
= 2xye-y2(2y2 - 6); 
= 
= e-y2(1 - 2y2)
D. 
= 0 ; 
= 2xye-y2(2y2 - 3); 
= 
= e-y2(1 - y2)
Mathematics
Use the given information given to find the exact value of the trigonometric function.sec ? = 4,
? lies in quadrant I
Find cos 
.
A. 
B. 
C. 
D. 
Mathematics
Find the missing angle measure.
A. 98° B. 196° C. 26° D. 16°
Mathematics
Use the formula for 
to evaluate the expression.
A. 40 B. 24 C. 1 D. 0
Mathematics