Is it right????

AIEEE Discussion Forum › Algebra questions › Is it right????

If S=.99999999.......âˆž

then 10S=9.9999999.....âˆž

then 9S=9
then S=1
?????

#Mathematics #Algebra

UP 0 DOWN 0 0 7
Post on FacebookPost anonymously?

7 Answers

1

narayan ·2011-07-04 23:06:45

yes..it is right

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Debosmit Majumder ·2011-07-05 05:36:11

yes it is right....it`s a way to prove that 0.999999....recurring is equal to 1

UP 0 DOWN 0
Post on FacebookPost anonymously?

7

Sigma ·2011-07-05 07:49:41

But can we assume a no. like this to be as S(a real definite no.)?
We can say that it tends to 1 but how can it be Equal to 1??//

UP 0 DOWN 0
Post on FacebookPost anonymously?

11

sagnik sarkar ·2011-07-05 08:36:55

0.99999.... is approximately and not exactly 1.

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

aditya ravichandran ·2011-07-05 08:46:52

Also
S=10.00000000000.....1
10S=100.0000000000.....1
9S=90
S=10

SO ,
9.999999999...=10=10.00000...1 ???

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Ricky ·2011-07-05 08:51:06

@ Kreyszig , that is why " f ( x ) = x " is continuos at " x = 10 " .

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Debosmit Majumder ·2011-07-05 08:54:41

exactly....that is the reason i think

UP 0 DOWN 0
Post on FacebookPost anonymously?

Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω