Sum of three consecutive terms in AP is 6 and their product is
120 . find three terms.
Answers
Answered by
3
Answer:
Let the three terms be
a-d,a,a+d
sum=a-d+a+a+d=6
=3a=6
a=2
product =(a-d)a(a+d)=120
(a^2-d^2)a=120
(4-d^2)2=120
8-2d^2=120
-2d^2=128
d^2=64
d=8
ap are 6,2 10
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Answered by
5
Answer:
(a-d) +a +(a+d) = 6
3a = 6
A = 2
(a-d)×a×(a+d) = 120
(2-d×)2×(2+d) = 120
(4 - d^2) 2 = 120
4 - d^2 = 60
d^2 = - 64
D = 8
AP = - 6,2,10
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