Question and Answers Forum

All Questions      Topic List

Algebra Questions

Previous in All Question      Next in All Question      

Previous in Algebra      Next in Algebra      

Question Number 30916 by Tinkutara last updated on 28/Feb/18

Commented by Tinkutara last updated on 28/Feb/18

Answer is 1⃣

Answered by $@ty@m last updated on 28/Feb/18

ln (1+x)=x−(x^2 /2)+(x^3 /3)−...  −ln (1−x)=x+(x^2 /2)+(x^3 /3)+...  Put x=(((√3)−(√2))/(√2))

$$\mathrm{ln}\:\left(\mathrm{1}+{x}\right)={x}−\frac{{x}^{\mathrm{2}} }{\mathrm{2}}+\frac{{x}^{\mathrm{3}} }{\mathrm{3}}−... \\ $$$$−\mathrm{ln}\:\left(\mathrm{1}−{x}\right)={x}+\frac{{x}^{\mathrm{2}} }{\mathrm{2}}+\frac{{x}^{\mathrm{3}} }{\mathrm{3}}+... \\ $$$${Put}\:{x}=\frac{\sqrt{\mathrm{3}}−\sqrt{\mathrm{2}}}{\sqrt{\mathrm{2}}} \\ $$

Commented by Tinkutara last updated on 01/Mar/18

Then the series is just x+x^2 +x^3 +...

$${Then}\:{the}\:{series}\:{is}\:{just}\:{x}+{x}^{\mathrm{2}} +{x}^{\mathrm{3}} +... \\ $$

Commented by $@ty@m last updated on 01/Mar/18

I also observed that....   In my opinion there is defect  in question  coz LHS should be equal to RHS

$${I}\:{also}\:{observed}\:{that}.... \\ $$$$\:{In}\:{my}\:{opinion}\:{there}\:{is}\:{defect} \\ $$$${in}\:{question} \\ $$$${coz}\:{LHS}\:{should}\:{be}\:{equal}\:{to}\:{RHS} \\ $$

Commented by Tinkutara last updated on 01/Mar/18

Question wrong surely?

Terms of Service

Privacy Policy

Contact: info@tinkutara.com