Find the equation of tangents to the cur...

Find the equation of tangents to the curve `y = cos(x+y), -2pi le x le 2pi` that are parallel to the line `x + 2y = 0`

A

`((pi)/(2),0)`

B

`(-(pi)/(2),0)`

C

`((3pi)/(2),0)`

D

`((pi)/(4),(pi)/(4))`

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The correct Answer is:

A

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