Find the derivative of the function.y = ln (ln 2x)
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the unit tangent vector T and the principal unit normal vector N. r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk
A. T = 
i + 
j + 
k; N = 
i + 
j
B. T = 
i - 
j + 
k; N = 
i + 
j
C. T = 
i - 
j + 
k; N = 
i + 
j
D. T = 
i - 
j + 
k; N = 
i + 
j
Mathematics
Translate to an equation and solve.What number is 84% of 479?
A. 402.36 B. 40,236 C. 4023.6 D. 40.24
Mathematics
Find a general term an for the geometric sequence.a1 = - 
, r = -5
A. an = - 
? (-5)n-1
B. an = - 
+ 
(n - 1)
C. an = 
n-1
+ 
D. an = - 
- 
(n - 1)
Mathematics
In each group of four products, one is wrong. Use estimation to determine which product is incorrect.
A. 140 × 42 = 5880 B. 54 × 362 = 19,658 C. 548 × 87 = 47,676 D. 268 × 56 = 15,008
Mathematics