Oh yes! Plus minus of course!!!
Find the solution:
x - 1 = 13 + 1(2 + 1(3 + 1(2 + .....)to ∞))
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7 Answers
Sayantan Hazra
·2013-06-08 00:40:30
show the steps how you have attempted the question.....
Hint: It is from Quadratic eqns
Sayan Sinha
·2013-06-08 00:49:17
Actually the structure of the question is not clear...
x-1=13+12+13...∞
→ 3+12+13+...= 1x-1
→ 3+12+x-1 = 1x-1
→ 3+1x+1=1x-1
→ 3=1x-1-1x+1
→ 3=x+1-x+1(x+1)(x-1)
→ 3=2x2-1
→ 3x2-3=2
→ 3x2=5
→ x2=53
→ x=√53
Thanx...