Question

Identidades trigonométricas


Cosx Cscx = cotx

Answer 1

Recordemos:

• cscx = 1 / sinx
• cotx = cosx / sin


Procedimiento:

${\cos x.\csc x= \cot x}\\\\{\cos x .\csc x =}\\\\\\{\dfrac{\cos x}{1}.\dfrac{1}{\sin x}=}\\\\\\{\dfrac{\cos x}{\sin x}=}\\\\\\{\boxed{\cot x}\ \ \sqrt{}\ \ \ verificada\ la\ identidad}$