Question

if the first term of an AP is 5and d is 2 then sum of first 6 term is​

Answer 1

GIVEN THAT

THE FIRST TERM OF AN AP =5

THE COMMON DIFFERENCE = 2

REQUIRED FORMULA

Sn = n/2(2a+(n-1)d)

S6 = 6/2(2(5)+(6-1)2)

S6 = 3(10+10)

S6 = 3(20)

S6 = 60

SO THE SUM OF FIRST 6 TERMS IS 60

Answer 2

....hope it helps....