Question
lame
duck In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.Solution
“Lame duck” is an idiomatic expression which refers to an ineffectual or unsuccessful person or thing.
If 125x3 - 216y3 = (5x - Ay) X (Bx2 + 36y2 + Cxy), then find the value of 3 X (2A + 6B) - 2C.
[a/(2a²  + 5a + 2)] = 1/6 , then find the value of (a+1)/a ?
If x + y + z = 10 and x² + y² + z² = 36, then what is the value of x y + y z + z x?
If √f + (1/√f) = 5, then find the value of f + (1/f).
If x + y + z = 9 and xy + yz + zx = 26, find the value of x³ + y³ + z³ − 3xyz.
 If x + 1/x = 5, then find [x2 + (1/x2)].
If (a2 + 1/a2) = 38, then find the value of (a3 - 1/a3).
(x – 6) 2 + (y + 2) 2 + (z – 4) 2 = 0, then find the value of 4x - 3y + z.
If 112 ÷28 x 22 –12 x 6 ÷ 3 +12 = z, then find the value of z.
If {1/(y + 1) + 1/(y + 5)} = {1/(y + 2) + 1/(y + 4)}. Find the value of yÂ
