9. The system of linear equation x + y + z = 6, x + 2y + 3z = 10 and x + 2y + z = u has infinite solutions (A) =4, u = 10 == (C) = 3, = 10 (B) = 5, = 5 2 (D) = 10, u = 3 1 10. The maximum value of the function f(0): = sin 0 4 cos 0 1 1 4 cos is: o 1 sin 0 1 (A) 14 (B) 17 (C) 17 (D) 14 11.Let f and g be differentiable functions satisfying g'(a) = 2, g(a) = b and fog = 1 (Identity function) then f'(b) is equal to : (A) 1/2 (B) 2 (C) 2/3 (D) None of these 12.If z-z+1=0, then value of (z+1) 2 + (z + ) + (z + 112) + (z + 1). (224 + 2) is equal to : (A) 24 x24 (B) 32 (C) 48 (D) None of these 13.If p and q are roots of ax + bx + c, then lim (1+ ax + bx + c)x-p is : (A) In|a(p q) (B) ea(p-q) (C) ea(a-p) (D) 1 ++