Question and Answers Forum

All Questions      Topic List

None Questions

Previous in All Question      Next in All Question      

Previous in None      Next in None      

Question Number 25188 by lucky singh last updated on 05/Dec/17

the straight line x+y=0    3x+y−4i=0  and x+3y−4=0 forms a triangle which triangle   it is

$${the}\:{straight}\:{line}\:{x}+{y}=\mathrm{0}\:\: \\ $$$$\mathrm{3}{x}+{y}−\mathrm{4}{i}=\mathrm{0} \\ $$$${and}\:{x}+\mathrm{3}{y}−\mathrm{4}=\mathrm{0}\:{forms}\:{a}\:{triangle}\:{which}\:{triangle}\: \\ $$$${it}\:{is} \\ $$

Commented by prakash jain last updated on 07/Dec/17

x+y=0   {: ((x+y=0)),((3x+y−4=0)) } ⇒x=2,y=−2 (A)   {: ((x+y=0)),((x+3y−4=0)) } ⇒x=−2,y=2  (B)   {: ((3x+y−4=0)),((x+3y−4=0)) } ⇒x=1,y=1  (C)  AB=4(√2), BC=(√(10)), AC=(√(10))  Triangle is isoceles.

$${x}+{y}=\mathrm{0} \\ $$$$\left.\begin{matrix}{{x}+{y}=\mathrm{0}}\\{\mathrm{3}{x}+{y}−\mathrm{4}=\mathrm{0}}\end{matrix}\right\}\:\Rightarrow{x}=\mathrm{2},{y}=−\mathrm{2}\:\left(\mathrm{A}\right) \\ $$$$\left.\begin{matrix}{{x}+{y}=\mathrm{0}}\\{{x}+\mathrm{3}{y}−\mathrm{4}=\mathrm{0}}\end{matrix}\right\}\:\Rightarrow{x}=−\mathrm{2},{y}=\mathrm{2}\:\:\left(\mathrm{B}\right) \\ $$$$\left.\begin{matrix}{\mathrm{3}{x}+{y}−\mathrm{4}=\mathrm{0}}\\{{x}+\mathrm{3}{y}−\mathrm{4}=\mathrm{0}}\end{matrix}\right\}\:\Rightarrow{x}=\mathrm{1},{y}=\mathrm{1}\:\:\left(\mathrm{C}\right) \\ $$$${AB}=\mathrm{4}\sqrt{\mathrm{2}},\:\mathrm{BC}=\sqrt{\mathrm{10}},\:{AC}=\sqrt{\mathrm{10}} \\ $$$$\mathrm{Triangle}\:\mathrm{is}\:\mathrm{isoceles}. \\ $$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com