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AP EAMCET202021 Sep 2020Morning ShiftMathematicsTrigonometric Ratios & IdentitiesActual

If (x 0 ), then ( ( +x) ( 2 +x ) ( 3 2 -x ) (2 -x) (2 -x) (2 +x) cosec (-x) ( 3 2 +x ) = )

Options

  1. A0
  2. B-1
  3. C1
  4. D2

Correct answer

C. 1

Step-by-step solution

( aligned & ( +x) ( 2 +x ) ( 3 2 -x ) (2 -x) (2 -x) (2 +x) cosec (-x) ( 3 2 +x ) & (x 0) & = (- x)(- x)( x)(- x) (- x)( x)(- cosec x)(- x) =1 aligned ) Hence, option (c) is correct.

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