The 11th11th term and the 21st21st term of an A.P. are 16 and 29 r | Filo
filo Logodropdown-logo

Class 11

Math

Algebra

Sequences and Series

view icon537
like icon150

The 11th11th term and the 21st21st term of an A.P. are and respectively, then find  such that

Correct Answer: Option(b)
Solution: Let and be the first term and common difference of given AP respectively.
Given
                    ...(1)
                         ...(2)
Subtraction (1) from (2), we get


Putting in (1), we get



Now,



view icon537
like icon150
filo banner image

Connecting you to a tutor in 60 seconds.

Get answers to your doubts.

playstore logoplaystore logo
Similar Topics
determinants
matrices
binomial theorem
complex numbers and quadratic equations
sequences and series