Question

3.Which term of the A.P 27,24,21,.......is zero ?
Or
If d=4, n=7. a= 4 then find = a ?​

Answer 1

Answer:

3 ) 10th term of Ap is zero

Step-by-step explanation:

a = 27 d = -3

An = 0

a+(n-1)d=0

27+(n-1)(-3)

-3n+3+27=0

-3n= -30

n=10

B) An = a+(n-1)d

4 = a+(7-1)(4)

4 =a+ 24

a=28