Question

Find the 11th term of the A.P. -3, -1/2, ,2 …. Is​

Answer 1

Answer:

11th term = 22

Step-by-step explanation:

first term/a= -3

common difference/d= -1/2-(-3)

                                    =5/2

11th term= a+(n-1)d

= -3+ (11-1)5/2

=-3+(10)5/2

=-3+25

=22

Answer 2

Answer:

The 11th term of the given AP is 28.

Step-by-step explanation:

Here we have been given an Arithmetic progression and it has been asked to find its 11th term.

We know that the general formula of AP is

$a_n$= a+(n-1)d

Here, a=first term= -3

        d=common difference = $\frac{5}{2}$

as we have to find the 11th term of the AP

∴ n= 11

putting n=11 in the general formula of AP we will easily get its 11th term.

$a_{11}$= -3+(11-1)×$\frac{5}{2}$

    = -3+25

   = 28

Hence the 11th term of the given AP is 28.