BC,a=x^(2)-1,b=2x+1,/_C=120^(@)," find "c

In DeltaABC, a=x^(2)-1, b=2x+1, angleC=120^(@) , find c.

In DeltaABC, a=x^(2)-1, b=2x+1, angleC=120^(@) , find c.

If A = x^(3), B = 4x^(2) + x -1, C = x +1 , then find (A -B) (A-C)

Statement-1: If triangleABC, 3bc=(a-b+c)(a+b-c) then A=120^(@) . and Statement-2: cos 120^(@)=-1/2

Statement-1: If triangleABC, 3bc=(a-b+c)(a+b-c) then A=120^(@) . and Statement-2: cos 120^(@)=-1/2

If a^2+b^2+c^2=-2 and f(x)=|{:(1+a^2x,(1+b^2)x,(1+c^2)x),((1+a^2)x,1+b^2x,(1+c^2)x),((1+a^2)x,(1+b^2)x,1+c^2x):}| then find the degree of the polynomial f(x).

If (x^(2)+x+1)/(x^(2)+2x+1)=A+B/(x+1)+C/(X+1)^(2) , then A+B+C=

I : If (x^(2)+x+1)/(x^(2)+2x+1)=A+B/(x+1)+C/(x+1)^(2) " then "A+B+C=0 . II : If (x^(2)+2x+3)/x^(3)=A/x+B/x(2)+C/x^(3) " then "A+B-C=0 .

If (x+a) (x+b) (x+c) =x^(3) +14x^(2) +59x + 70 , find the value of (i) a+b+c (ii) (1)/(a) +(1)/(b) +(1)/(C ) ( iii) a^(2) +b^(2) +c^(2) (iv) (a)/(bc) +(b)/( ac) +(c )/( ab)