If `b-c`, `bx-cy`, `bx^(2)-cy^(2)` (`b,c ne 0`) are in `G.P`, then the value of `((bx+cy)/(b+c))((bx-cy)/(b-c))` is

If a,b,c are in G.P. then find the value of |{:(a,b,ax+by),(b,c,bx+cy),(ax+by,bx+cy,0):}| .

If the lines x+ay=a=0, bx+y+b=0, cx+cy+1=0 (a,b,c being distinct and !=1 ) are concurrent, then the value of (a/(a-1)+b/(b-1)+c/(c-1)) is

If b^2 -aclt0 and alt 0, then thevalue of the determinant |(a,b,ax+by),(b,c,bx+cy),(ax + by,bx + cy,0)| is

If a!=b!=c, lf ax+by+c=0,bx+cy+a=0 and cx+ay+b=0 are concurrent.Then the value of 2^(a^(2)b^(-1)c^(-1))2^(b^(2)c^(-1)a^(-1))2^(c^(2)a^(-1)b^(-1))

If the lines x+ay+a=0, bx+y+b=0, cx+cy+1=0 (a!=b!=c!=1) are concurrent then value of a/(a-1)+b/(b-1)+c/(c-1)=

If the lines x+ay+a=0,bx+y+b=0,cx+cy+1=0(a!=b!=c!=1) are concurrent then value of (1)/(a-1)+(1)/(b-1)+(1)/(c-1)=