The stability of hydrides increase from NH3 to BiH3 in group 15 of the periodic. The area of the region enclosed by the curves y = x, x = e, y =1/x and the
A. 1/2 square units
B. 1 square units
C. 3/2 square units
D. 5/2 square units
The area of the figure bounded by the curves y2=2x+1 and x-y-1=0 is
A. 2/3
B. 4/3
C. 8/3
D. 16/3
If a is the area bounded by y=x2,x-axis,x=0,x=2; b is the area bounded by y=x2+2,x-axis,x=1,x=2 and c is the area bounded by y=x3,x-axis,x=1,x=4 then the ascending order of a,b,c is
A. a,b,c
B. b,c,a
C. a,c,b
D. c,a,b