Multiply and simplify if possible.(
+ 2)(
- 2)
A. 12
B. 8 - 2
C. 6
D. 4
Answer: D
Mathematics
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Place the correct symbol, >, <, or =, in the blank in the given pair of fractions.
A. > B. = C. <
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Find all the first order partial derivatives for the following function.f(x, y) = ln 
A. 
= 
; 
= 
B. 
= -ln
; 
= ln 
C. 
= - 
; 
= 
D. 
= -ln 
; 
= ln 
Mathematics
Write the vector in the form ai + bj. 
A. 9i + 2j B. -2i + 9j C. 9i - 2j D. 2i + 9j
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Perform the operation and write the result in the standard form.(5 + 2i)(7 + 2i)
A. 31 + 24i B. 39 + 4i C. 4i2 + 24i + 35 D. 31 - 24i
Mathematics