ramirokool
State whether the sequence is arithmetic. If so, state the common difference.
1.8, 3.6, 7.2, 14.4, ...
Answer
1.8
1.8
not arithmetic
16.2



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sauravshakya
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Here,
find t3t2 and t2t1

ramirokool
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C.

sauravshakya
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If
t3t2=t2t1 then arithmetic with common difference=t3t2

sauravshakya
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Yes

ramirokool
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So C ?

sauravshakya
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yep

sauravshakya
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it is C