Question

16. The first term and common difference of an AP are 3 and 4
respectively. Then, find 20= term of the AP.
*-=2-1. then find the value of as-a?​

Answer 1

Step-by-step explanation:

It is given that, First term, a=−1, Common Difference, d=−3, and Number of Terms, n=12

∴nth term of any AP is given by:

Tn=a+(n−1)d

Hence,

T12=(−1)+(12−1)(−3)=−34