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If t a ntheta=x-1/(4x) , then s e ctheta...

If `t a ntheta=x-1/(4x)` , then `s e ctheta-t a ntheta` is equal to (a) `-2x ,1/(2x)` (b) `1/(2x),\ 2x` (c) `2x` (d) `2x ,1/(2x)`

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RD SHARMA ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
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