Dear All,

I need help to solve these questions on sequences..

Q1. Write the first rour terms of the following sequences

If

i) $\displaystyle a_n = (-1)^n (2n-3)$

ii) $\displaystyle a_n - a_{n-1} = n + 2, a_1 = 2$

Q2. Which term of the arithmetic sequence -2, 4, 10, .... is 148?

Q3. Find the 11th term of the sequence 1+i, 2, 4/1+i, .... where i^2 = -1

Answers with some description will help me to understand the methodology.

Thanks in Advance