Respuesta :

reinhard10158

Step-by-step explanation:

cos(x) = 5/13

the relation is

sin²(x) + cos²(x) = 1

so,

sin²(x) + (5/13)² = 1

sin²(x) + 25/169 = 169/169

sin²(x) = 144/169

sin(x) = 12/13

good luck !

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