Question

Find the sum
of 16 torm of Ap. 2,5,8,11​

Answer 1

Step-by-step explanation:

Given AP : 2,5,8,11...

First term (a)=2

Common difference (d)=5-2=3

we know that Sn=n/2[2a+(n-1)d]

we have n=16

S16=16/2[2(2)+(16-1)(3)]

=>8[4+15×3]

=>8(4+45)

=>8×49

S16 =>392

sum of 16 terms of the given A P =392

Answer 2

$s16 = 392$

✌️☺️✌️