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