IfA=[cosθisinθ isinθcosθ],(θ=24π) and A5=[acbd], where i=−1, then which one of the following is not true?
Held on 4 Sept 2020 · Verified 6 Jul 2026.
0≤a2+b2≤1
a2−d2=0
a2−c2=1
a2−b2=21
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