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30-01-2021
Mathematics

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

Respuesta :

30-01-2021

answer x = 225 and y = -135

Step-by-step explanation:

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

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