Question

) Find the 105th term of the AP whose first term is 2.7 and common difference is 0.
If the common difference of an AP is -3 and the 20th term is -11, ​

Answer 1

Answer:

I hope this answer may help you

Step-by-step explanation:

Here a=first term,d=common difference

(ii)n=105,a=2.7,d=0

a+(n-1)d=an

2.7+(105-1)0=an

2.7+0=an

an=2.7

105th term of the A.P is 2.7

(i)20th term=-11

a+19d=-11 (d=-3 given )

a+19(-3)=-11

a-57=-11

a=-11+57

a=46