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Write the First Four Terms of the Sequence Whose General an=(1)n+1n+7\mathrm { a } _ { \mathrm { n } } = \frac { ( - 1 ) ^ { \mathrm { n } + 1 } } { \mathrm { n } + 7 }

Question 128

Multiple Choice

Write the first four terms of the sequence whose general term is given.
- an=(1) n+1n+7\mathrm { a } _ { \mathrm { n } } = \frac { ( - 1 ) ^ { \mathrm { n } + 1 } } { \mathrm { n } + 7 }


A) 18,19,110,111\frac { 1 } { 8 } , - \frac { 1 } { 9 } , \frac { 1 } { 10 } , - \frac { 1 } { 11 }
B) 18,19,110,111- \frac { 1 } { 8 } , \frac { 1 } { 9 } , - \frac { 1 } { 10 } , \frac { 1 } { 11 }
C) 18,118,130,144\frac { 1 } { 8 } , - \frac { 1 } { 18 } , \frac { 1 } { 30 } , - \frac { 1 } { 44 }
D) 19,110,111,112- \frac { 1 } { 9 } , \frac { 1 } { 10 } , - \frac { 1 } { 11 } , \frac { 1 } { 12 }

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