27. lim (4" + 5* )*"* is equal to (B) 4 (A) 5 (C) 0

If A=[(5a, -b),(3,2)] and A adj A=A A^T, then 5a+b is equal to: (A) -1 (B) 5 (C) 4 (D) 13

9+|-4| is equal to: (a)5 (b) -5 (c) 13 (d) -13

9+|-4| is equal to: 5 (b) -5 (c) 13 (d) -13

((-2)/5)^7-:((-2)/5)^5 is equal to (a) 4/(25) (b) (-4)/(25) (c) ((-2)/5)^(12) (d) (25)/4

21. If lim_(xrarroo) e^(x^2) - cosx / (sin^2x) is equal to (a) 3 (b) 3/2 (c) 5/4 (d) 2

In triangle A B C , if r_1=2r_2=3r_2, then a : b is equal to 5/4 (b) 4/5 (c) 7/4 (d) 4/7

(4)^(0.5) xx (0.5)^(4) is equal to:

If f is defined and continuous on [3, 5]and f is differentiable at x=4 and f' (4) = 6 , then the value of underset(x to 0)(lim) (f(4 + x) - f(4- x) )/( 4x) is equal to a)0 b)2 c)3 d)4

In triangle A B C , if r_1=2r_2=3r_3, then a : b is equal to 5/4 (b) 4/5 (c) 7/4 (d) 4/7