Perform the operation and write the result in the standard form.(7 - 
)(3 + 
)
A. 81 + 52i
B. 81 - 52i
C. -81 + 52i
D. 3621 + 808i
Answer: A
Mathematics
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Find the indicated derivative. Assume that x is restricted so that ln is defined.h'(x) if h(x) = 2 ln (sin2 2x)
A. 
B. 8 cot 2x
C. 4 tan 2x
D. 
Mathematics
Provide an appropriate response.Choose the number that is divisible by 2, 3, 7, 6, and 14.
A. 21 B. 142 C. 114 D. 42
Mathematics
Find the product of the complex number and its conjugate.i
A. -3
B. -
C. 3
D. 
Mathematics
Solve.x + y + z = 6x - z = -2 y + 3z = 11
A. (1, 2, 3) B. (-1, 2, -3) C. (3, -2, 5) D. (0, 4, 2)
Mathematics