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Select the correct options from the given alternatives.Let `D=|(sinthetacosphi,sinthetasinphi,costheta),(costhetacosphi,costhetasinphi,-sintheta),(-sinthetasinphi,sinthetacosphi,0)|`then

A

D is independent of `theta`

B

D is independent of `phi`

C

D is a constant

D

`(dD)/(d theta) at theta = pi/2` is equal to 0

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