find the 11th term for the last term(towards the first term ) of the AP:10,7,4,.....,-62.
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Answer:
Step-by-step explanation:
Here
a = 10
d = -3
l= -62
Where
l = a+(n-1)d
-62 = 10+(n-1)(-3)
-72 = (n-1)(-3)
n-1 = 24
n = 25
So, there are 25 terms in the given AP.
The 11th term from the last will be the 15th term (it will not be the 14th term )
So,
a15 =10+(15-1)(-3)
= 10-42
= -32
The 11th term from the last is -32
powanna:
Hii, thanks for answering ,but I can't understand after n=25
So there are 25 terms
If u minus 11 frm 25 the ans is 14 but we have to do +1 bcz the last term is also included or the first term
ohh
tqq
Ur wlcm
how will we know that the 11th term from the last will be 15 th term please explain
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