Question

find the sum of given below
7+10+13+................46​

Answer 1

Answer:

371

Step-by-step explanation:

d=a2–a1

d=10–7

d=3

an=a+(n–1)d

46=7+(n–1)×3

39=(n–1)×3

(n–1)=13

n=13+1

n=14

$sn = \frac{n}{2}(2a + (n - 1)d)$

$sn = \frac{14}{2} (2 \times 7 + (14 - 1) \times 3)$

sn=7×(14+13×3)

sn=7×(14+39)

sn=7×53

sn=371

⭐Hope it helps you⭐

Answer 2

Step-by-step explanation:

see the pick friend❤.thats the right answer.

all the best