Find the nth term an of the geometric sequence.an = 823,543; 7, 49, 343, . . . .
A. n = 5
B. n = 6
C. n = 8
D. n = 7
Answer: D
Mathematics
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Find the Jacobian 
or 
(as appropriate) using the given equations.
A. 350v B. 350u C. 140u D. 140v
Mathematics
Solve. 
- 
= 0
A. -5, 183 B. 187, -9 C. -9, -5 D. 7, -21
Mathematics
Find all values of ?, if ? is in the interval [0, 360°) and has the given function value.sec ? = - 
A. 45° and 315° B. 45° and 225° C. 135° and 225° D. 225° and 315°
Mathematics
Solve the problem.Find (f - g)(x) given f(x) = 5x - 7 and g(x) = 8x - 5.
A. 13x - 12 B. -3x - 12 C. 3x + 2 D. -3x - 2
Mathematics