Let L . A ~ {' and M. HX _ I' be two linear mapping's ( a ) Prove that Rangel L o M { Range \[ ] . Then , conclude that Rank [ [ O AI lt;...

Can anyone help me with this question please? The question 3 a) in assignment 6 is in the picture below.

Thank you so much!

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3. Let L . A" ~ {' and M. HX _ I' be two linear mapping's( a ) Prove that Rangel L o M { Range \[ ] . Then , conclude that Rank [ [ O AI < Rank [ [ ) (using Question Bla) ofAssignment 6 ).( b ) Prove that Mulling = NullIL - MI) . Conclude that Nullitying = Nullity [ [ O MJ (using Question 3 ( a) ofAssignment 6 ) . Then , using the Rank - Nullity theorem , conclude that Rank ! [ . MY = Ranking .( C ) Conclude that Rank [ [ O MY = min / Rank [ [ ) , Rank[ My] .(d ) Conclude that for an m* n matrix A and an n* * matrix B , we always have** COLLAB ) = COLLAY ;* Null( B ) = NullL ABY ; and* Rank ! ABY = min ( Rank[ A] , Rank [ BY] .Give an example for matrices A and B such that Rank [ AB ) = min ( Rank [ A ] , Rank [ BY] , and an example*for matrices C and D such that Rank ! (D ) < min ( Rank![ ] , Rank [ D ]1 .