Provide an appropriate response.If A is a 6 × 9 matrix and A+ K = A, what can you say about K?
A. K is a 6 × 9 matrix and each of its entries is the negative of the corresponding entry of A.
B. K is a 9 × 6 matrix and all entries of K are equal to 0.
C. K is a 9 × 6 matrix and each of its entries is the negative of the corresponding entry of A.
D. K is a 6 × 9 matrix and all entries of K are equal to 0.
Answer: D
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= 
- 4y, x > 0
A. y = x4(cos x + C), x > 0 B. y = x-4(sin x + C), x > 0 C. y = x4(sin x + C), x > 0 D. y = x-4(cos x + C), x > 0
Determine which labeled sections make up the indicated set.
C - (A ? B)
A. r, p B. s, v, p C. p, r, s D. r
Find the gradient field F of the function f.f(x, y, z) = x7y6 + 
A. F = (7x6 + 8x7)i + 6y5j - 
k
B. F = 7x6y6i + 6x7y5j - 
k
C. F = 
i + 6x7y5j - 
k
D. F = (7x6 + 8x7)i + 6y5j + 
k
Write sigma notation.1 - 
+ 
- 
+ 
- . . .
A. 
B. 
C. 
D. 