Which one of the following is correct?
If `(1)/(b-c)+(1)/(b-a)=(1)/(a)+(1)/(c),` then a, b, c are in

If 1/(b-a) +1/(b-c)=1/a+1/c , then a,b and c are in

(1)/(a)+(1)/(c)+(1)/(a-b)+(1)/(c-b)=0 and b!=a+c, then a,b,c are in

If (1)/(b+c),1/(c+a),1/(a+b) are are in HP, then which of the following is/are correct? 1 a, b, care in AP 2. (b+c)^2 (c + a)^2, (a + b)^2 are in GP

If a ((1)/(b) + (1)/(c)) , b((1)/(c) + (1)/(a)) , c ((1)/(a)+ (1)/(b)) are in AP then a, b, c are in :

Simplify the following expression 1/((a-b)(b-c))+1/((b-c)(c-a))+1/((c-a)(a-b))

If a,b,c are in H .P.then (1)/(a)+(1)/(b+c),(1)/(b)+(1)/(a+c),(1)/(c)+(1)/(a+b) are in

If A and B are invertible matrices, which of the following statement is not correct. a d j\ A=|A|A^(-1) (b) det(A^(-1))=(detA)^(-1) (c) (A+B)^(-1)=A^(-1)+B^(-1) (d) (A B)^(-1)=B^(-1)A^(-1)

If A and B are invertible matrices, which of the following statement is not correct. a d j\ A=|A|A^(-1) (b) det(A^(-1))=(detA)^(-1) (c) (A+B)^(-1)=A^(-1)+B^(-1) (d) (A B)^(-1)=B^(-1)A^(-1)