If A=[\table a+ib,c+id;-c+id,a-ib] and A^{-1}=[\table a+ib,-c-id;-c+id,a-ib]. Find (a^2+b^2+c^2+d^2)=

AP EAMCET Engineering 18 Sep 2020 Shift 1 Paper

Section: Mathematics

Question : 35 of 160

Marks: +1, -0

If A=[

a+ib	c+id
−c+id	a−ib

] and A−1=[

a+ib	−c−id
−c+id	a−ib

]. Find (a2+b2+c2+d2)=

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