find the number of term in ap 8.5,6.9,5.3,....151.5
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Answer:
hello mate it's so simple
formula is Tn=a+(n-1)d (or) an= a+(n-1)d
Step-by-step explanation:
a= 8.5
d= 6.9-8.5= -1.6
n=151.5
values put in formula
Tn=8.5+(151.5-1)(-1.6)
Tn=8.5+150.5(-1.6)
Tn=8.5-240.8
Tn= -232.3
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