Q2 of 23 Page 1

Attempt any four sub-questions from the following:

Find tn for the A.P. 3, 8, 13, 18, ………

Let a1, a2, a3,….. be the first, second, third and subsequent terms

Let d be the common difference


a1 = 3, a2 = 8


d = a2 – a1 = 8 – 3 = 5


tn = a + (n – 1)d


⇒ tn = 3 + (n – 1)5


⇒ tn = 3 + 5(n - 1)


More from this chapter

All 23 →
2

Attempt any four sub-questions from the following:

Form the quadratic equation if the roots are 6 and 7.

 2

Attempt any four sub-questions from the following:

Find the value of the determinant

2

Attempt any four sub-questions from the following:

Three coins are tossed simultaneously, find S and n(S).

 3

Attempt any three sub-question from the following:

Find the first three terms to the sequence, whose nth term is tn = 4n – 3