Question

plz solve this........​

Answer 1

Given, cos(40+θ) - sin(50-θ)

=> cos[(90-50)+θ)] - sin(50-θ)

=> cos[90-(50-θ)] - sin(50-θ)

=> sin(50 - θ) - sin(50 - θ)

=> 0

Hope it helps!

Answer 2

answer is 0

Hope this will help you.

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