NDA2012MathematicsSequences and SeriesActual
What is the n^ th term of the sequence 1,5,9,13 , 17, ?
Options
- A2 n-1
- B2 n+1
- C4 n-3
- DNone of the above
Correct answer
C. 4 n-3
Step-by-step solution
aligned a & =1, d=4 a_n & =a+(n-1) d & =1+(n-1) 4 & =1+4 n-4 & =4 n-3 . aligned