Asked by Aliyu

The 18th term of an A.p is 25.(a) find it's first term when the common difference is 2.(b) what term of an A.p gives 49
Answered by Steve
<u>its</u>, not <u>it's</u> in this context.

a+17d = 25

since d=2, it is simple to get a.

Then, since 49-25=24, and 24/2 = 12, the 18+12=30th term is 49.
Answered by God'swill
Solve it mathematically
Answered by Favour
Pls solve this questions
Answered by Anonymous
T18=a+17d=25
T18=a+(18-1)d
T18=a+17d=25
a+(17×2)=25
a+34=25
a=25-34
a=-9