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
- A0
- B-1
- C1
- 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.