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ln/ABC,(r(1))/(bc)+(r(2))/(ca)+...

ln/_ABC,(r_(1))/(bc)+(r_(2))/(ca)+

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In Delta ABC with usual notation (r_(1))/(bc)+(r_(2))/(ca)+(r_(3))/(ab) is

In DeltaABC" prove that " (r_(1))/(bc)+(r_(2))/(ca)+(r_(3))/(ab)=(1)/(r)-(1)/(2R)

Show that (r_(1))/(bc)+(r_(2))/(ca)+(r_(3))/(ba)=(1)/(r)-(1)/(2R)

In Delta ABC with usual notation (r_(1))/(bc)+(r_(2))/(ac)+(r_(3))/(ab) is:

In /_\ABC prove that (r_1)/(bc) + (r_2)/(ca) + (r_3)/(ab) = 1/r - 1/(2R) .

If r_(1), r_(2) ,r_(3) are the ex-radii of DeltaABC, then prove that (bc)/(r_(1))+(ca)/(r _(2))+(ab)/(r _(3))=2R [((a)/(b)+(b)/a)+((b)/(c)+(c)/(b))+((c)/(a)+ (a)/(c))-3]

If r_(1), r_(2) ,r_(3) are the ex-radii of DeltaABC, then prove that (bc)/(r_(1))+(ca)/(r _(2))+(ab)/(r _(3))=2R [((a)/(b)+(b)/a)+((b)/(c)+(c)/(b))+((c)/(a)+ (a)/(c))-3]

If r_(1), r_(2) ,r_(3) are the ex-radii of DeltaABC, then prove that (bc)/(r_(1))+(ca)/(r _(2))+(ab)/(r _(3))=2R [((a)/(b)+(b)/a)+((b)/(c)+(c)/(b))+((c)/(a)+ (a)/(c))-3]

In triangle ABC,if (1-(r_(1))/(r_(2)))(1-(r_(2))/(r_(3)))=2 then the triangle is