Question

if ∆1=matrix a ib ib a and ∆2=matrix c id id c ,where i2 =-1 ,then find the product of ∆1 and ∆2 hence prove that (a2+b2) (c2+d2)=(ac-bd )2 +(ad+bc)2​

Answer 1

Step-by-step explanation:

perimeter of rectangle=2(l+b)

=2(ad+bc)

=2(2)

=2(l+b)

=2(5510+2)

=2(5512)