The ist term of an ap is 420and common difference is 7.its19th term in
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Answered by
2
19th term = 420+(19-1)7
=420+18X7
=420+126
=546
Answered by
10
Answer:
546
Step-by-step explanation:
T1 = 420
D= 7
Tn = a +(n+1) d
T19= 420 + (19-1)7
= 420+(18) 7
= 420 + 126
= 546
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