find the 10th term from the end of the AP 4,9,14...254
Answers
Answered by
2
Answer:
209
Step-by-step explanation:
a= 254
d= -5 n= 10
Tn = a +(n-1)d
= 254+(10-1)-5
= 254 +9(-5)
= 254 -45
= 209
Answered by
2
Answer: 209
Step-by-step explanation:
first reverse the ap
so , now it is , 254,.....14,9,4
now a= 254
d = -5
n= 10
so
an= a+ (n-1) d
an = 254 + (10-1) × -5
an = 254 - 45
an = 209
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