The value of {cos(40° + θ) - sin(50° - θ)} is

Given, cos(40° + θ) - sin(50° - θ)

[cos(90° - θ) = sinθ ]

⇒ cos(90° - (50° - θ)) - sin(50° - θ)

⇒ sin(50° - θ) - sin(50° - θ)

= 0

⇒ Option C is the correct as the value of cos(40° + θ) - sin(50° - θ) is 0

⇒ Option A is incorrect, since it does not match the value

⇒ Option B is incorrect, since it does not match the value

⇒ Option D is incorrect, since it does not match the value