Menu Close

Find-determinant-1-7-1-9-3-5-1-5-3-

Tinku Tara 0 Comments
Pin




Question Number 204041 by hardmath last updated on 04/Feb/24
Find: determinant ((1,7,(−1)),(9,(−3),5),((−1),5,3))= ?
Find:|17−19−35−153|=?
Answered by AST last updated on 04/Feb/24
=1 determinant (((−3),5),(5,3))−7 determinant ((9,5),((−1),3))−1 determinant ((9,(−3)),((−1),5)) =−9−25−7(27+5)−1(45−3)=−300
=1|−3553|−7|95−13|−1|9−3−15|=−9−25−7(27+5)−1(45−3)=−300
Answered by som(math1967) last updated on 05/Feb/24
C_2 →C_2 −7C_1 C_3 →C_3 +C_1 determinant ((1,0,0),(9,(−66),(14)),((−1),(12),2)) =−66×(2)−12×14 =−132−168=−300
C2→C2−7C1C3→C3+C1|1009−6614−1122|=−66×(2)−12×14=−132−168=−300

Pin

Leave a Reply

Your email address will not be published. Required fields are marked *