If `A + B+C = pi,` then the value of `|(cos(A+b+C),cos B,cos C),(-sin B,0,cot A),(sin(A+B),-cot A,0)|` is

If A+B+C=pi then the value of |(sin(A+B+C), sinB, cosC),(-sinB,0,tanA),(cos(A+B),-tanA,0)|=

If A+B+C=pi , then value of |{:(sin(A+B+C),sinB,cosC),(-sinB,0,tanA),(cos(A+B),-tanA,0):}| is

If A+B+C=pi, then the value of |[sin(A+B+C),sin(A+C),cosC],[-sinB,0,tanC],[cos(A+B),tan(B+C),0]| is equal to (a) 0 (b) 1 (c) 2sinBtanAcosC (d) none of these

If A+B+C=pi, then the value of |[sin(A+B+C),sin(A+C),cosC],[-sinB,0,tanC],[cos(A+B),tan(B+C),0]|is equal to (a)0 (b) 1 (c) 2sinBtanAcosC (d) none of these

In o+ABC, if cot A+cot B+cot C=0 then find the value of cos A cos B cos C

If A+B+C=0, then the value of sin^(2)A+cos C(cos A cos B-cos C)+cos B(cos A cos C-cos B) is equal to: -1 (b) 0(c)1 (d) none of these

In Delta ABC, if cot A+cot B+cot C=0 then find the value of cos A cos B cos C.

If cos A+coa B+cos C=sin A+sin B+sin C=0 the values of (cos3A+cos3B+cos C)/(cos(A+B+C))