Find the number of terms in A. P. 3, 15, 27, 39, … , 639 and find 8th term from last.
Answers
Answered by
1
Answer:
t₄₆=543
Step-by-step explanation:
given, AP 3, 15, 27, 39, … , 639
a=3
d = t₂-t₁ = 15-3 = 12
l = 639
we know, n = [(l-a)/d] + 1
= [(639-3)/12]+1
= (636/12)+1
= 53+1
= 54
=> there are 54 terms in the given AP
=> the 8th term from the last term will be (54-8)th term
ie,. 46th term
t₄₆= 3+(46-1)12
= 3+45*12
= 3+540
= 543
Answered by
0
Answer:
nai yaar vo 3000 + k baad mileng e
Step-by-step explanation:
645 757 3101
: 1099
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