SELECT * FROM question_mgmt as q WHERE id=995 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=6 AND chapterId=80 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 11th mathematics Sequence and Series write the first five terms of the sequences whose

Question: Write the first five terms of the sequences whose nth term is an=n(n+2)

Answer:

 an = n(n+2)

Substituting n = 1, 2, 3, 4, and 5, we obtain

 a1 = 1(1+2) = 3

 a2 = 2(2+2) = 8

 a3 = 3(3+2) = 15

 a4 = 4(4+2) = 24

 a5 = 5(5+2) = 35

Therefore, the required terms are 3, 8, 15, 24, and 35.

 


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