Find the 16th term of an AP if a = 15 and d = -2 ?
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Answered by
3
As a= 7
comman ratio = 4
nth term = a+(n-1)d
n = 25
25th term =[ 7+(25-1)4]
= 7+96
103 will be 25 th term
Answered by
1
Answer:
-15
Step-by-step explanation:
Given : a = 15 , d = -2
Formula : tn = a + (n-1) d
t16 = 15 + (16-1) (-2)
= 15 (15) (-2)
= 15 - 30
= -15
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