A. 37
B. 8
C. 12
D. 19
E. 25
54.35 × 39.87 ÷ 13.35 =?
If x=√3+1/√3-1and y=√3-1/√3+1,then the value of (x2 + y2) is:
(94)2 + (?)2 = (145)2- (56)2- 3869