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If f(x) = |("sec" theta, "tan"^2 theta,1...

If `f(x) = |("sec" theta, "tan"^2 theta,1),(theta"sec"x,"tan"x,x),(1,"tan"x-"tan"theta,0)|` then `f^(1)(theta)` is

A

`0`

B

`-1`

C

independent of `theta`

D

`2`

Text Solution

Verified by Experts

The correct Answer is:
B
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