Let `a , b ,a n dc` be rel numbers which satisfy the equation `a+1/(b c)=1/5,b+1/(a c)=(-1)/(15),a n dc+1/(a b)=1/3dot` The value of `(c-b)/(c-a)` is equal to ________.

Let a , b , c ne three distinct non-zero real numbers satisfying the system of equation (1)/(a)+(1)/(a-1)+(1)/(a-2)=1 , (b)+(1)/(b-1)+(1)/(b-2)=1 , (1)/(c )+(1)/(c-1)+(1)/(c-2)=1 . Then abc=

If a, b, c are positive real numbers, then the least value of (a+b+c)((1)/(a)+(1)/(b)+(1)/( c )) , is

Let a,b, and c be distinct nonzero real numbers such that (1-a^(3))/(a)=(1-b^(3))/(b)=(1-c^(3))/(c). The value of (a^(3)+b^(3)+c^(3)) is

If distinct positive number a , b, c, are in G.P. and (1)/(a-b), (1)/(c-a),(1)/(b-c) are in A.P. , then value of a + ab + c is equal to

Let a,b,c be distinct complex numbers such that (a)/(1-b)=(b)/(1-c)=(c)/(1-a)=k. Find the value of k.