JohnPayenda JohnPayenda

01-03-2017
Mathematics

contestada

How do I solve this trigonometry question:

sin(x+y)=cos(x-y)
tgx-tgy=1

please solve soon!

Respuesta :

pirezmelanie pirezmelanie

01-03-2017

(x+y)x(x-y) because since it equals 1 you have to multiply

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