If sin ( X − y ) = 1/2 and ( X + y ) = 1/2, then

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If sin ( X − y ) = 1/2 and ( X + y ) = 1/2, then what is the value of

sin X cos X − 1 sin² X − cos²X sec X ?

[SSC CHSL 15th March 2023 Shift-3 With Answers]

A

2

B

3/4

C

√2+1

D

1

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