DeterminantHard

Question

Let ᐃ = , 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

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