Question

Senx+Cosx/senx=1+ctgx
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Answer 1

${\dfrac{\sin(x)+\cos(x)}{\sin(x)}=\dfrac{\sin(x)}{\sin(x)}+\dfrac{\cos(x)}{\sin(x)}}\\\\\\{\dfrac{\sin(x)+\cos(x)}{\sin(x)}=1+\cot(x)\ \ \ \ \ l.q.q.d.}$