Determine whether (f ? g)(x) = x and whether (g ? f)(x) = x.f(x) = x2 + 2 , g(x) = 
- 2
A. Yes, no
B. Yes, yes
C. No, no
D. No, yes
Answer: C
Mathematics
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A. 
B. 
C. 
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Find the exact value of the logarithm using logb bx = x.log 
A. -6 B. 6 C. -5 D. 5
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