Answer:
Answer What
Step-by-step explanation:
Answer:
a is the answer as it has 2 constant terms in 3 variables
That's geometric sequence
T7 = T5*r^2 = T5+1920
r = 2, so
4*T5 = T5 + 1920
3T5 = 1920
T5 = 640
640 = 2^4 * 40
So, a=40 and the sequence is
40 80 160 320 640 1280 2560 5120 10240 20480 40960 ...
Note that 2560 = 640 + 1920
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Answer: The correct answer is D
Step-by-step explanation:
Answer:
Question not properly explained
