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Wendy Ye
Streamed 16 hours ago
If f(x) = ax2 + bx + c has no real zeros and a + b + c less than 0, then
Streamed 16 hours ago
If f(x) = ax2 + bx + c has no real zeros and a + b + c less than 0, then
![If A= [[1,2,3],[2,0,-2],], B= [[1,1,-1],[2,0,3],[3,-1,2]] and C= [[1,3],[0,2],[-1,4]], find A(BC).](http://i.ytimg.com/vi/bbPuR3re7PI/mqdefault.jpg "If A= [[1,2,3],[2,0,-2],], B= [[1,1,-1],[2,0,3],[3,-1,2]] and C= [[1,3],[0,2],[-1,4]], find A(BC).")
![Find the inverse of the 2 ×2 matrix (if it exists). [[ 1 -2; -3 2… ]](http://i.ytimg.com/vi/upDeQGnh7nQ/mqdefault.jpg "Find the inverse of the 2 ×2 matrix (if it exists). [[ 1 -2; -3 2… ]")
![[Exam Math] Percentage: Exchange 2](http://i.ytimg.com/vi/MofE8Q0cch4/mqdefault.jpg "[Exam Math] Percentage: Exchange 2")
