Provide an appropriate response.The error formula for the Trapezoidal Rule depends upon i) f(x). ii) f'(x). iii) f'' (x). iv) the number of steps
A. i, iii, and iv
B. i and iii
C. ii and iv
D. iii and iv
Answer: D
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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 - y2)
B. 
= ye-y2; 
= 2xye-y2(2y2 - 6); 
= 
= e-y2(1 - 2y2)
C. 
= ye-y2; 
= 2xye-y2(y2 - 1); 
= 
= e-y2(1 - y2)
D. 
= 0; 
= 2xye-y2(2y2 - 3); 
= 
= e-y2(1 - 2y2)
Solve the problem.What happens if you set B = -2? in the angle sum formulas for the sine and cosine functions? Do the results agree with something you already know?
What will be an ideal response?
Write an expression for the following and simplify.Divide 63z6 + 35z4 - 7z by 7z5.
A. 
= 63z + 
- 
B. 
= 9z + 
- 
C. 
= 9z7 + 5z - 
D. 
= 9z + 
+ 
Express the radical in simplest form, rationalize denominators, and perform the indicated operations.
+ 
A. -7
B. 7
C. 7
D. 12