can some else help me please/

Mathematics
Tutor: None Selected Time limit: 1 Day

If , find .
a.
-1
c.
1
b.
0
d.
sec
    
May 6th, 2015

(-1x sec)-(1x0)=0(determinant is 0

sec= 0......................................................................................................

May 6th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
May 6th, 2015
...
May 6th, 2015
Feb 26th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer