Find anand a6 for the following arithmetic sequence.a1 = x, a2 = 3x - 4
A. an = x + (2x - 4)(n - 1); a6 = 11x - 20
B. an = x + (4x - 4)(n - 1); a6 = 11x + 20
C. an = x + (3x - 4)(n - 1); a6 = 15x - 4
D. an = x + (2x + 4)(n - 1); a6 = 19x - 20
Answer: A
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A. 
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