помогите решить задачу. Created by aru240399. algebra-ru

помогите решить задачу...

August 2022 2 1 Report

помогите решить задачу

Alexandr130398 $\frac{cos(a+125^{\circ})}{sin(a+35^{\circ})} = \frac{cos((a+35^{\circ})+90^{\circ})}{sin(a+35^{\circ})} = \frac{-sin(a+35^{\circ})}{sin(a+35^{\circ})} =-1$
Ответ: -1

1 votes Thanks 0

AnonimusPro

Verified answer

По формуле приведениях:
cos(x+90)=-sin(x)

cos(a+125)=cos(a+35+90)=-sin(a+35)

-sin(a+35)/sin(a+35)=-1

Ответ: -1

2 votes Thanks 1

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