If ax + by = 1 and bx + ay = 2aba2+b2 then x2+y2a2+b2 is equal to

If a+1b= b+1c = c+1a (a , b, c are not equal) then the value of abc = 

If a = 1/a-5, then the value of a + 1/a = ?

If x = 11, the value of x5 - 12x4 + 12x3 - 12x2 + 12x - 1 is

The simplified value of 3-212-18 - 13 × 27 - 12 x 273 is closest to

If a + b + c + d = 4, then the value of 1(1-a)(1-b)(1-c) + 1(1-b)(1-c)(1-d) + 1(1-c)(1-d)(1-a) + 1(1-d)(1-a)(1-b)

If x = y + 2 then x3 - y3 - z3 is

If a+1b = 1 and b+1c = 1 then c+1a = ?