KingMaese9 KingMaese9

27-06-2017
Mathematics

contestada

5sin(x+tan^-1(4/3))=3sinx+4cosx. proof?

Respuesta :

August007 August007

27-06-2017

5sin(x+tan^-1(4/3))=5sinx*cos(tan^-1(4/3))+5cosx*sin(tan^-1(4/3))
=5sinx*(3/5)+5cosx*(4/5)
=3sinx+4cosx

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