A. a,b,c

B. b,c,a

C. a,c,b

D. c,a,b

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

The area of the figure bounded by the curves y^{2}=2x+1 and x-y-1=0 is