If `abc=0`, then find the value of `([(x^(a))^(b)]^(2c))/(x^(abc))`

If abc =0 then find the value of [(x^a)^b]^c .

If the planes x-cy-bz=0, cx-y+az=0 and bx+ay-z=0 pass through a line, then find the value of a^(2)+b^(2)+c^(2)+2abc .

In a triangle ABC if b+c=3a then find the value of cot((B)/(2))cot((C)/(2))

When a=3,b=0, c=-2 find the value of : a^(3)+b^(3)+c^(3)-3abc

If the planes x-cy-bz=0,cx=y+az=0 and bx+ay-z=0 pass through a straight line,then find the value of a^(2)+b^(2)+c^(2)+2abc

If a+b+c=2, ab+bc+ca=-1 and abc=-1 and abc=-2 , find the value of a^(3)+b^(3)+c^(3) .

If a+b+c=2, ab+bc+ca=-1 and abc=-2 , find the value of a^(3)+b^(3)+c^(3) .