" In a "Delta ABCc^(2)+a^(2)-b^(2)=ac" then "/_B=

If, in a Delta ABC, c^(2) + a^(2) - b^(2) = ac , then : /_B =

In Delta ABC2a^(2)+4b^(2)+c^(2)=2ab+2ac then numerical value of cos B is

In a Delta ABC,2B=A+C and b^(2)=ac. Then the value of (a^(2)(a+b+c))/(3abc) is equal to

If in a !ABC , a^(2)+b^(2)+c^(2)=ac+sqrt3ab then the triangle is

In DeltaABC, a^(2)+b^(2)+c^(2)=ac+ab sqrt(3) . Then the triangle is

If in a triangle ABC, (a^(2)-b^(2))/(a^(2)+b^(2)) then the triangle is

Let Delta = |{:(-bc,,b^(2)+bc,,c^(2)+bc),(a^(2)+ac,,-ac,,c^(2)+ac),(a^(2)+ab,,b^(2)+ab,,-ab):}| and the equation px^(3) +qx^(2) +rx+s=0 has roots a,b,c where a,b,c in R^(+) " if " Delta =27 " and " a^(2) +b^(2)+c^(2) =3 then

Let Delta = |{:(-bc,,b^(2)+bc,,c^(2)+bc),(a^(2)+ac,,-ac,,c^(2)+ac),(a^(2)+ab,,b^(2)+ab,,-ab):}| and the equation px^(3) +qx^(2) +rx+s=0 has roots a,b,c where a,b,c in R^(+) " if " Delta =27 " and " a^(2) +b^(2)+c^(2) =3 then