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19 votes
Sin( X+Y ) = cos( X−Y ) = 1,
find the value of X and Y.

User Juherr
by
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1 Answer

11 votes

answer x = 225 and y = -135

Explanation:

x+y = 90 and x= 90-y and x -y = 360 so 90-y -y = 360

User Kuru
by
8.4k points

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