Q.
A. 0.02
B. 0.2
C. 0.04
D. 0.4
E. None of the above
Correct choice: C
Explanation:
Given expression = (11.98)2 + (0.02)2 + 11.98 x x.
For the given expression to be a perfect square, we must have
11.98 x x = 2 x 11.98 x 0.02 or x = 0.04