If a = b+c, then the value of is.
4bc (b2 + c2)
-4 bc (b2 - c2)
4bc (b2- c2)
2abc
A is orthogonal if AAT =
A
I
A-1
|A|I
for x ≠ 0, y ≠ 0, then D is
divisible by neither x nor y
divisible by x but not y
divisible by y but not x
divisible by both x and y
Where x, y, z are positive.
log y x
log z y
log x z
0
If then A adj (A) =
-2
2
-4
4
, then |AB| =
80
100
-110
92
a ( x + y + z )
abc + xyz + pqr
a ( x + y + z ) + b ( p + q + r ) + c
If A is a square matrix, then
A + AT is symmetric
AAT is skew - symmetric
AT + A is skew - symmetric
AT A is skew symmetric
Inverse of is.
