Question

Find the value of cos(2 pie+x)​

Answer 1

Step-by-step explanation:

answer

The value of cosycos(2π−x)−cos(2π−y)cosx+sinycos(2π−x)+cosxsin(2π−y) is zero, if?

A

x=0

B

y=0

C

x=y

D

x=nπ−4π+y

cosycos(2π−x)−cos(2π−y)cosx+sinycos(2π−x)+cosxsin(2π−y)=0⇒cosysinx−sinycosx+sinysinx+cosx