gwenso3ng0leWindybro gwenso3ng0leWindybro

14-06-2016
Mathematics

contestada

sin ( 90 + theta ) = cos theta

prove^

Respuesta :

HomertheGenius HomertheGenius

18-06-2016

We will use additional formula:
sin ( 90°+ theta ) = sin 90° * cos(theta) + cos 90° * sin(theta)=
= 1 * cos(theta) + 0 * sin(theta)= cos (theta) It is proved.

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