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Nth Term - Mathematics Jamb Past Questions and Answers

Mathematics Questions And Answers On Nth Term
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Mathematics Jamb Past Questions


Questions and Answers on Nth term

Question 1 :



The nth term of a sequence is given by 2\(^{2n - 1}\). Find the sum of the first four terms.

A. 74
B. 32
C. 42
D. 170


Question 2 :



What is the nth term of the progression 27, 9, 3,......?

A. 27\(\frac{1}{3}\) n - 1
B. 3n + 2
C. 27 + 18(n - 1)
D. 27 + 6(n - 1)


Question 3 :



What is the n-th term of the sequence 2, 6, 12, 20...?

A. 4n - 2
B. 2(3n - 1)
C. N2 + n
D. N2 + 3n + 2


Question 4 :



Find the nth term of the sequence 3, 6, 10, 15, 21.....

A. \(\frac{n(n - 1)}{2}\)
B. \(\frac{n(n + 1)}{2}\)
C. \(\frac{(n + 1)(n + 2)}{2}\)
D. N(2n + 1)


Question 5 :



Sn is the sum of the first n terms of a series given by Sn = n\(^2\) - 1. Find the nth term

A. 4n + 1
B. 4n - 1
C. 2n + 1
D. 2n - 1






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