Real Tough DS

[rahul1024]

2. Is Square Root of (x-5^2) = 5-x?

(1) -x|x| >0

(2) 5-x > 0

Will post the Official Answer after the discussions

[jadugar]

Solving the equation we get complex roots with (11 +- 79^0.5 * i) / 2. This means root cannot be negative while equation 1 implies the root to be negative. Using equation 2, we get -0.5 +- imaginary number, which is never greater than 0.

Answer should be E.