Write the first five terms for the following expressions.
n2
Answers
Answered by
2
Answer:
a1=3,an=3an−1+2foralln>1
Step-by-step explanation:
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Answered by
1
Step-by-step explanation:
The n
th
term of the sequence is
a
n
=3
n
...................eq(1)
1) For finding the first term of sequence (a
1
) put n=1 in eq(1)
a
1
=3
1
⟹a
1
=3
2) For finding the second term of sequence (a
2
) put n=2 in eq(1)
a
2
=3
2
⟹a
2
=3×3
⟹a
2
=9
3) For finding the third term of sequence (a
3
) put n=3 in eq(1)
a
3
=3
3
⟹a
3
=3×3×3
⟹a
3
=27
4) For finding the fourth term of sequence (a
4
) put n=4 in eq(1)
a
4
=3
4
⟹a
4
=3×3×3×3
⟹a
4
=81
5) For finding the fifth term of sequence (a
5
) put n=5 in eq(1)
a
5
=3
5
⟹a
5
=3×3×3×3×3
⟹a
5
=243
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