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

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

-8-(-5)=? (a) -3, (b) -13, (c) 13, (d) 3

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

If n is a natural number, then 9^(2n)-4^(2n) is always divisible by (a) 5 (b) 13 (c) both 5 and 13 (d) none of these

In Fig. , A D=4c m , B D=3c m and C B=12 c m , find cottheta . (a) (12)/5 (b) 5/(12) (c) (13)/(12) (d) (12)/(13) (

In Figure, A D=4c m , B D=3c m and C B=12 c m , find cottheta . (a) (12)/5 (b) 5/(12) (c) (13)/(12) (d) (12)/(13)

A circle is inscribed in a triangle A B C touching the side A B at D such that A D=5,B D=3,if/_A=60^0 then length B C equals. 9 (b) (120)/(13) (c) 13 (d) 12

A circle is inscribed in a triangle A B C touching the side A B at D such that A D=5,B D=3,if/_A=60^0 then length B C equals. 9 (b) (120)/(13) (c) 13 (d) 12

Reduce (128352)/(238368) to its lowest terms.(3)/(4) (b) (5)/(13) (c) (7)/(13) (d) (9)/(13)

If a : b = c : d , prove that : (i) 5a + 7b : 5a - 7b = 5c + 7d : 5c - 7d . (ii) (9a + 13b) (9c - 13d) = (9c + 13d) (9a - 13b) . (iii) xa + yb : xc + yd = b : d