Multiply and simplify.
? 
A. 1
B. 
C. -1
D. 0
Answer: A
Mathematics
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FInd the tangential and normal components of the acceleration.r(t) = (t + 4)i + (ln(cos t) - 10)j + 2k
A. a = (sec t tan t)T - (sec t)N B. a = (-sec t tan t)T - (sec t)N C. a = (sec t tan t)T + (sec t)N D. a = (-sec t tan t)T + (sec t)N
Mathematics
Express as a product.log b N-8
A. log b N ? log b 
B. N log b 
C. -8 log b N
D. log b N ? log b N
Mathematics
Find the domain of the composite function f?g.f(x) = 6x + 36,g(x) = x + 4
A. (-?, -10) or (-10, ?) B. (-?, -6) or (-6, -4) (-4, ?) C. (-?, ?) D. (-?, 10) or (10, ?)
Mathematics
Find the indicated matrix.Let A = 
and B = 
. Find AB.
A. 
B. 
C. 
D. 
Mathematics