(AB)-1 = __________
A-1B-1
B-1A-1
B-1/A-1
(AB)T
The one root of the equation
- ( a+ b)
- ( b + c )
-a
- ( a + b + c )
Where x, y, z are positive.
log y x
log z y
log x z
0
A is orthogonal if AAT = ________
A
I
A-1
|A|I
1
2
3
If ,then x is equal to
6
-6
o
N
2N+1
N + 2
1 + a2 + b2 + c2
1 - a2 + b2 + c2
1 + a2 + b2 - c2
1 + a2 -b2 + c2
1/ abc
abc
ab + bc + ca
a ( x + y + z )
abc + xyz + pqr
a ( x + y + z ) + b ( p + q + r ) + c
