find the 15th term from the last of the AP 16,13,10,7......,-65
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a=16
d=-3(13-16)
a(n)=-65.
Therefore from last a=-65.
d=+3.
a(n)=a+(n-1)*d.
a(15)= -65+(15-1)*3
a(15)= -65+ (14)*3
a(15)=-65+42.
a(15) = -23.
This is your answer mate
d=-3(13-16)
a(n)=-65.
Therefore from last a=-65.
d=+3.
a(n)=a+(n-1)*d.
a(15)= -65+(15-1)*3
a(15)= -65+ (14)*3
a(15)=-65+42.
a(15) = -23.
This is your answer mate
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