7. The area of the region enclosed by the two curves s = y' and y = v2 -r, and the r-axis, is 22 17 23 25 19 13 11 (C) (D) (B) (F) (G) (H) (A) 16 (B) 75 15 (1) None of (A) - (H). 8. Let g(x) = In(r). When n 2 3 is a natural number, the value of g.")(0.5) is given by [Recall that k! = 1 . 2 . 3 . ..k] (A) (-1)(+0)2" [(m - 1)! (B) (-1)"2"[(2 - 1)! (C) (-1)(0+1>2"[n!] (D) (-1)"2" [!] (E)(-1)"()[--11 (F) (D)() (4 (G) None of the above