evaluate the following determinants:
matrix of [ad+bc   bd-ac
                ac-bd    ad+bc]
 

Dear Student,

ad+bc  bd-acac-bd  ad+bc=ad  bdac  ad+bc  -ac-bd   bc=add  bc  a+bcc  -a-d   b=adad-bc+bcbc-ad=a2d2-abcd+b2c2-abcd=a2d2+b2c2-2abcd

Regards

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