Write the first four terms of the sequence.an = 
A. a1 = 
, a2 = - 
, a3 = 
, a4 = - 
B. a1 = - 
, a2 = 
, a3 = - 
, a4 = 
C. a1 = 
, a2 = - 
, a3 = 
, a4 = - 
D. a1 = - 
, a2 = 
, a3 = - 
, a4 = 
Answer: C
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = cot(9x - 6)
A. y = cot u; u = 9x - 6; 
= - 9 cot(9x - 6) csc(9x - 6)
B. y = 9u - 6; u = cot x; 
= - 9 cot x csc2 x
C. y = cot u; u = 9x - 6; 
= - csc2(9x - 6)
D. y = cot u; u = 9x - 6; 
= - 9 csc2(9x - 6)
Find the general solution of the differential equation. Use C, C1, C2, . . . to denote arbitrary constants. If used, do not simplify hyperbolic functions.y'(t) = 7 + e-4t
A. y = 7 - 
+ C
B. y = 7t + e-4t + C
C. y = -4e-4t + C
D. y = 7t - 
+ C
Use the graph to write the terms of the sequence.
A. 1, 2, 3, 4, 5 B. 5, 4, 3, 2, 1 C. 0, 1, 2, 3, 4 D. 2, 3, 4, 5, 6
Add.-22.5 + (-15.2)
A. 37.7 B. -37.7 C. -7.3 D. 7.3