DeterminantHard
Question
Let ᐃ = 
, then
, then Options
A.ᐃ is independent of θ
B.ᐃ is indepedent of φ
C.ᐃ is a constant
D.none of these
Solution
ᐃ = 
ᐃ = sin2θ cosθ
Applying R1 → R1 - R2
ᐃ = sin2 θ cos θ
ᐃ = sinθ
ᐃ = sin2θ cosθ
Applying R1 → R1 - R2
ᐃ = sin2 θ cos θ
ᐃ = sinθ
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