Question Number 13228 by b.e.h.i.8.3.4.1.7@gmail.com last updated on 16/May/17
Commented by b.e.h.i.8.3.4.1.7@gmail.com last updated on 16/May/17
$${in}\:{triangle}\:{ABC},{show}\:{that}: \\ $$$$\boldsymbol{{r}}=\sqrt{\boldsymbol{{r}}_{\boldsymbol{{a}}} .\boldsymbol{{r}}_{\boldsymbol{{b}}} }+\sqrt{\boldsymbol{{r}}_{\boldsymbol{{b}}} .\boldsymbol{{r}}_{\boldsymbol{{c}}} }+\sqrt{\boldsymbol{{r}}_{\boldsymbol{{c}}} .\boldsymbol{{r}}_{\boldsymbol{{a}}} }\:. \\ $$
Commented by Tinkutara last updated on 17/May/17
$$\mathrm{Can}\:\mathrm{you}\:\mathrm{tell}\:\mathrm{the}\:\mathrm{source}\:\mathrm{of}\:\mathrm{this}\:\mathrm{question}? \\ $$
Commented by chux last updated on 17/May/17
$$\:\mathrm{pls}\:\mathrm{sir}….\:\mathrm{which}\:\mathrm{app}\:\mathrm{did}\:\mathrm{you}\:\mathrm{use}\: \\ $$$$\mathrm{in}\:\mathrm{drawing}\:\mathrm{this} \\ $$
Commented by Tinkutara last updated on 17/May/17
$$\mathrm{You}\:\mathrm{can}\:\mathrm{use}\:\mathrm{Geogebra}\:\mathrm{Graphing} \\ $$$$\mathrm{Calculator}. \\ $$
Commented by chux last updated on 17/May/17
$$\mathrm{ok}……\:\mathrm{thanx} \\ $$