Question

find the sum of all terms of the ap19, 33,47,425​

Answer 1

Answer:

...............

524

...........................

Answer 2

Answer:6585

Step-by-step explanation:

Sum of ap=n/2(a+l)

So first we need to find "l"

a=19

d=14

425=19+(n-1)d

425=19+(n-1)14

425=19+14n-14

439=14n+19

439-19=14n

420=14n

n=30

On applying this on the formula

30/2(19+420)

15(439)

6585