The 12th term of an A.P is -41.Given that the first term is 3.find the 20th term

4 answers

I need it now
I need it now please
What you need is to learn the definitions for an AP, and how to apply it

a = 3
term(12) = a + 11d = -41
3 + 11d = -41
solve for d, and then

term(20) = a + 19d = ....
Please alway go straight to the point in order for someone to be able to understand you, thanks.