What is the first positive term of -118-111-104-...?
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`-118,-111,-107,.....`
`T_1 = -118`
`T_2 = -111`
`T_3 = -107`
` T_2-T_1 = -111-(-118) = 7`
`T_3-T_2 = -107-(-111) = 7`
So the sequence is a arithmetic series with initial term -118 and common difference 7.
`a = -118`
`d = 7`
In a...
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