(4) If `D =| [2,3], [5,-2]|` then find `D`

If A=[(3, 1) , ( 2 ,-3)] , then find |a d j\ A| .

If A=|[3, 0,-1], [2, 3 ,0], [0, 4, 1]| , then find |a d j\ (a d j\ A)| .

If A=[(1,2),(3,4),(5,6)] and B=[(-3,-2),(1,-5),(4,3)] , then find D=[(p,q),(r,s),(t,u)] such that A+B-D=O .

If 4 + (4 +d)/( 5) + (4 + 2d)/(5 ^(2)) ……….=1, then find d.

In a /_\ A B C , A D is the bisector of /_A , meeting side B C at D . (i) If B D=2. 5 c m ,\ \ A B=5c m and A C=4. 2 c m , find D C . (ii) If B D=2c m ,\ \ A B=5c m and D C=3c m , find A C . (iii) If A B=3. 5 c m , A C=4. 2 c m and D C=2. 8 c m , find B D .

If the middle points of the sides of a triangle are (-2,3),(4,-3),a n d(4,5) , then find the centroid of the triangle.

Let a , b , c , d be positive integers such that (log)_a b=3/2a n d(log)_c d=5/4dot If (a-c)=9, then find the value of (b-d)dot

The pressure and density of a gas (Ƴ =5/3) changes adiabatically from (p1,d1 ) to (p2,d2).If d2/d1=27 the find value of p2/p1 ?

If a d j\ A=[(2, 3),(4,-1)] and a d j\ B=[(1,-2),(-3, 1)] , find a d j\ A Bdot

If the area of each plate is A and then successive separations are d, 2d and 3d , then find the equivalent capacitance across A and B. .