if `x=(a-b)/(a+b+c+d)=(b-c)/(a+b+c+d)=(c-d)/(a+b+c+d)`
`=(d-a)/(a+b+c+d)`, then find `x^(3)`.

If (a + b + c + d) (a - b - c + d) = (a + b - c - d) (a - b + c - d) , then prove that a : b = c : d

If (a+b x)/(a-b x)=(b+c x)/(b-c x)=(c+d x)/(c-d x)(x ne 0) , then show that a, b, c and d are in G.P.

If (a + b + c + d) (a - b - c + d) = (a + b - c - d) (a - b + c - d) , prove that: a : b = c : d .

If (a + b e^(x))/(a-b e^(x)) = (b + c e^(x))/(b- c e^(x))= (c + d e^(x))/(c- d e^(x)) then a, b, c, d are in

If (a + b + c + d) : (a + b - c - d) = (a - b + c - d):(a-b-c+d) , then prove that a : b = c :d .

If asin^2x+bcos^2x=c,bsin^2y+acos^2y=d and atanx=btany then a^2/b^2=........ (0ltx,yltpi/ 2) .............. A) ((b-c) (d-b))/((a-d) (c-a)) B) ((a-d ) (c-a))/((b-c) (d-b)) C) ((d-a) (c-a))/((b-c)(d-b)) D) ((b-c) (d-b))/((c-a) (a-d))

If x=(b-c)(a-d),y=(c-a)(b-d),z=(a-b)(c-d) , then the what is x^(3)+y^(3)+z^(3) equal to?

If (2a+3b)(2c-3d)=(2a-3b)(2c+3d) then (a)/(b)=(c)/(d)( b) (a)/(d)=(c)/(b)( c) (a)/(b)=(d)/(c)(d)(b)/(a)=(c)/(d)

If the solution set of the inequaiton (x+4)(x-1)(x-3)(x+1)<0 is x in (a , b)uu(c , d) then (a) a+b+c+d=1 (b) a+b+c+d=2 (c) a b c d=12 (d) a b+c d=7