write the first 5 terms of sequence whose nth term is an=(1+(-1)n)n
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Answered by
1
Answer:
Solution
Substituting n=1,2,3,4,5 we obtain,
a1=(−1)1−151+1=52=25
a2=(−1)2−152+2=−53=−125
a3=(−1)3−153+1=54=625
a4=(−1)4−154+1=−55=−3125
a5=(−1)5−155+1=−56=15625
Therefore the required terms are 25,−125,625,−3125,15625
Answered by
0
Solution
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Substituting n=1,2,3,4,5 we obtain,
a
1
=(−1)
1−1
5
1+1
=5
2
=25
a
2
=(−1)
2−1
5
2+2
=−5
3
=−125
a
3
=(−1)
3−1
5
3+1
=5
4
=625
a
4
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=(−1)
4−1
5
4+1
=−5
5
=−3125
a
5
=(−1)
5−1
5
5+1
=−5
6
=15625
Therefore the required terms are 25,−125,625,−3125,15625
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